Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
ho chieu » theo chieu, doi chieu, mot chieu
luan ban » luan van, luan san, luan han
cong san » cong tac
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: ((ho chieu) or (hoc thieu)) sang - hanh tang luan ban ((cong san) or (cong thanh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sang - hanh tang luan ban ((cong san) OR (cong thanh)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sang - hanh tang luan ban ((cong san) or (cong thanh)) toan cao*.