Perhaps you should try some spelling variations:
truong chua » truong cua, truong chung, truong ca
truong quan » trong quan, thong quan, luong quan
bang luong » nang luong, hang luong, bang suong
luong va » dung va
toan cau » toan cao, toan ban, toan tap
ho hieu » ho chieu, hoi hieu, nho hieu
va toan » van toan, bai toan, tap toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu qua - thanh ((truong chua) or (truong quan)) bang luong va toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu qua - thanh ((truong chua) OR (truong quan)) bang luong va toan cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu qua - thanh ((truong chua) or (truong quan)) bang luong va toan cau*.