Perhaps you should try some spelling variations:
nthanh thang » nhanh thang, nhanh thanh, thanh thanh
thanh thang » nhanh thang, thanh thanh, thanh hang
thong cong » trong cong, tong cong, thong thong
thi chieu » thi chien, thi hieu, theo chieu
ho chieu » theo chieu, hoc thieu, doi chieu
va thong » va thuong, va phuong, he thong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » 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)) sang - ((thanh thang) or (nthanh thang)) va thong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chieu) OR (ho chieu)) sang - ((thanh thang) OR (nthanh thang)) va thong cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((thi chieu) or (ho chieu)) sang - ((thanh thang) or (nthanh thang)) va thong cong tac toan cau*.