Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
lanh tranh » canh tranh, lan tranh, hanh trinh
cong ngang » cong nhan, cong quang, cong lang
cong sang » cong san, cong lang, cong vang
ho chieu » hoc thieu, doi chieu, mot chieu
tranh va » tranh van, trang va, trinh va
than cau » toan cau, phan cau, than cap

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