Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh han
mot chieu » doi chieu, ho chieu
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
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: ((mot chieu) or (hoc thieu)) xanh - hanh ((trinh quan) or (trinh luat)) hang cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (hoc thieu)) xanh - hanh ((trinh quan) OR (trinh luat)) hang cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (hoc thieu)) xanh - hanh ((trinh quan) or (trinh luat)) hang cong tac toan cao*.