Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
thi chieu » thi chien, thi hieu, theo chieu
tranh cua » doanh cua, manh cua
dang cong » dung cong
cua dang » cua cong, cua ban
san van » luan van, tran van, dang van
tan van » tran van, tang van, luan van

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 (thi chieu)) xanh - canh tranh cua dang cong ((san van) OR (tan van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (thi chieu)) xanh - canh tranh cua dang cong ((san van) OR (tan van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (thi chieu)) xanh - canh tranh cua dang cong ((san van) OR (tan van)) ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (thi chieu)) xanh - canh tranh cua dang cong ((san van) OR (tan van)) ban*.