Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
dang cong » dung cong
tan thanh » tran thanh, tang thanh, toan thanh
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, mot chieu, doi chieu
van dang » van dong, van dung, van nang
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) tinh - ((thanh tung) or (thanh thuong)) van dang cong tan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - ((thanh tung) OR (thanh thuong)) van dang cong tan thanh lap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - ((thanh tung) or (thanh thuong)) van dang cong tan thanh lap*.