Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu
tranh cua » doanh cua, manh cua
dong cong » duong cong, dung cong, dang cong
van thanh » ban thanh, van tuan
cua dong » chua dong, cua cong, cua dang
van hanh » ban hanh, van anh, 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: ((hoc thieu) or (hoc hien)) xanh - hanh tranh cua dong cong ((van hanh) OR (van thanh)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - hanh tranh cua dong cong ((van hanh) OR (van thanh)) cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (hoc hien)) xanh - hanh tranh cua dong cong ((van hanh) OR (van thanh)) cac".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) xanh - hanh tranh cua dong cong ((van hanh) OR (van thanh)) cac*.