Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
hieu lang » chieu sang, hieu quang, nhieu tang
cua khong » hua khong, cua phuong, cua thuong
hanh ban » thanh ban, hang ban, hanh san
ho hieu » ho chieu, hoi hieu, nho hieu
ban cua » ban quan
san tap » han tap, man tap, san tay
han tay » ha tay, han tai, han tap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh ban cua khong ((dong thanh) OR (truong thanh)) ((san tap) OR (han tay))~.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh ban cua khong ((dong thanh) or (truong thanh)) ((san tap) or (han tay))*.