Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu
van nhung » van nhuong, va nhung, van hung
ho chieu » theo chieu, doi chieu, mot chieu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (((ho chieu) or (hoc thieu)))) sang - tranh luan van nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (((ho chieu) OR (hoc thieu)))) sang - tranh luan van nhung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (((ho chieu) or (hoc thieu)))) sang - tranh luan van nhung cong dan toan cau*.