Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
cua tong » cua cong, cua dong, cua nong
cong van » cong vang, cong san, song van
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (theo chieu)) xanh - canh tranh cua tong cong van ((phan cau) OR (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (theo chieu)) xanh - canh tranh cua tong cong van ((phan cau) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hien) or (theo chieu)) xanh - canh tranh cua tong cong van ((phan cau) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (theo chieu)) xanh - canh tranh cua tong cong van ((phan cau) OR (phan dau))*.