Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
cong thang » cong thanh, cang thang, cong thong
cong than » cong thanh, cong tan, cong thai
ho chieu » hoc thieu, doi chieu, mot chieu
tranh va » tranh van, trang va, trinh va
phan cau » phan dau, phan cac, phan tu

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