Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
canh manh » lanh manh, canh tranh, cach mang
dung cong » dung trong
ho chieu » hoc thieu, doi chieu, mot chieu
manh cua » doanh cua, ban cua
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
pham vau » pham van, pham vu, pham dau
pham va » pham van, pham ma, pham tai

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