Perhaps you should try some spelling variations:
hanh huong » thanh huong, anh huong, manh huong
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, mot chieu
huong cua » dung cua
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, mot chieu
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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 chieu)) xanh - hanh huong cua thong cong tac ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - hanh huong cua thong cong tac ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) xanh - hanh huong cua thong cong tac ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - hanh huong cua thong cong tac ((toan cau) OR (toan ban))*.