Perhaps you should try some spelling variations:
thanh trung » thanh tung
dung luong » dung thuong, dung phuong, dung truong
luong tinh » luong tin, long tinh, luong ninh
hieu cach » hieu cac, chieu sach, hieu ca
hanh tran » hanh trang, thanh tran, hanh tram
toc hieu » toc thieu, doc hieu, hoc thieu
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu cach - ((hanh tran) or (thanh trung)) xay dung luong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu cach - ((hanh tran) OR (thanh trung)) xay dung luong tinh toan ban*.