Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
mot chieu » doi chieu
nang cong » nang song, dang cong, bang cong
ho chieu » hoc thieu, doi chieu, thi chieu
thanh ta » thanh tra, thanh tai, thanh tay
van nang » van quang, van ban, van dong
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan cau » toan cao, toan ban, toan tap
ta van » tan van, tap van, va van

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 (mot chieu))) or (theo chieu)) xanh - thanh ta van nang cong tap toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (mot chieu))) OR (theo chieu)) xanh - thanh ta van nang cong tap toan cau.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (mot chieu))) or (theo chieu)) xanh - thanh ta van nang cong tap toan cau*.