Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thi chieu » thi chien, thi hieu, theo chieu
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((thi chieu) or (ho chieu))) or (doi chieu)) xanh - canh tranh va nhung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((thi chieu) OR (ho chieu))) OR (doi chieu)) xanh - canh tranh va nhung cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((((thi chieu) or (ho chieu))) or (doi chieu)) xanh - canh tranh va nhung cong tan toan cao*.