Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
khong cang » thong cong, hong bang, khong dung
doi chieu » doi chi, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
cua khong » hua khong, cua phuong, cua thuong
doc hieu » toc thieu, hoc thieu, hoc hien
cang dan » cong dan, tang dan, canh dan
toan ban » van ban

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 (doc hieu)) xanh - hanh tranh cua khong cang dan ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) xanh - hanh tranh cua khong cang dan ((toan ban) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doc hieu)) xanh - hanh tranh cua khong cang dan ((toan ban) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doc hieu)) xanh - hanh tranh cua khong cang dan ((toan ban) or (toan tap))*.