Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, lanh tranh
theo chieu » theo tieu, ho chieu, theo chu
hanh trang » thanh trung, canh tranh, hanh trinh
thong cong » trong cong, tong cong, thong thong
ha thong » hoa thong, nha thong, he thong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac
doi chi » doi khi

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

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