Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dong cong » duong cong, dung cong, cong cong
dang cong » dung cong
ho chieu » theo chieu, doi chieu, mot chieu
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (hoc thieu)) sang - hanh tranh cua ((dong cong) or (dang cong)) dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sang - hanh tranh cua ((dong cong) OR (dang cong)) dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) sang - hanh tranh cua ((dong cong) or (dang cong)) dan van ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) sang - hanh tranh cua ((dong cong) or (dang cong)) dan van ban*.