Tili ndi gulu lapadziko lonse lapansi lochokera ku China, Philippines, Israel, etc. Ogwira ntchito ku kampaniyi ndi odziwa zambiri, achinyamata komanso akatswiri, ndipo patatha zaka zambiri za utsogoleri wabwino ndi maphunziro aukadaulo, kampaniyo tsopano yapanga gulu lokhala ndi luso loyendetsa bwino, kulimba mtima kuchita komanso kuchita bwino. luso, ndi gulu la malonda, chitukuko cha zipangizo zamakono, ndi chitukuko cha kapangidwe kazinthu.