Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
tranh cua » doanh cua
dung cong » dung trong
ho chieu » hoc thieu, doi chieu, mot chieu
manh cua » doanh cua, ban cua
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat

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 (theo chieu)) xanh - canh ((tranh cua) OR (manh cua)) dung cong tac phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) xanh - canh ((tranh cua) OR (manh cua)) dung cong tac phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) xanh - canh ((tranh cua) OR (manh cua)) dung cong tac phan tu".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) xanh - canh ((tranh cua) OR (manh cua)) dung cong tac phan tu*.