Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
theo chieu » theo tieu, ho chieu, theo chu
tranh chua » tranh cua, trinh chuan, tranh chap
thong cong » trong cong, tong cong, phong chong
dan chan » dan gian, dan ca, van chat
chan cap » khan cap, than cap, cao cap
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 chua ((thong cong) OR (thong thong)) dan chan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chi)) xanh - hanh tranh chua ((thong cong) OR (thong thong)) dan chan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (doi chi)) xanh - hanh tranh chua ((thong cong) OR (thong thong)) dan chan cap".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chi)) xanh - hanh tranh chua ((thong cong) OR (thong thong)) dan chan cap*.