Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung chan » trung phan, trong chan, trung can
thi chieu » thi chien, thi hieu, theo chieu
chan dung » van dung, dan dung
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
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: ((((ho chieu) or (doi khi))) or (thi chieu)) xanh - thanh trung chan dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (doi khi))) OR (thi chieu)) xanh - thanh trung chan dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (doi khi))) or (thi chieu)) xanh - thanh trung chan dung cong tac toan cau*.