Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
thong cong » trong cong, tong cong, thong thong
thi chieu » thi chien, thi hieu, thi hien
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ((toc thieu) or (((theo chieu) or (thi chieu)))) xanh - thanh trung cua thong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (((theo chieu) OR (thi chieu)))) xanh - thanh trung cua thong cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ((toc thieu) or (((theo chieu) or (thi chieu)))) xanh - thanh trung cua thong cong tac toan cao*.