Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, mot chieu
chua bang » chu bang, chua nang, chua xang
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, mot chieu
cong dan » cong san, cong tan, huong dan
dan thai » dang thai, dan thi, dan than
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (ho chieu)) xanh - ((hanh tranh) OR (hanh trinh)) chua bang cong dan thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) xanh - ((hanh tranh) OR (hanh trinh)) chua bang cong dan thai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (ho chieu)) xanh - ((hanh tranh) OR (hanh trinh)) chua bang cong dan thai cao".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) xanh - ((hanh tranh) OR (hanh trinh)) chua bang cong dan thai cao*.