Perhaps you should try some spelling variations:
phung cong » phong cong, nhung chong, dung cong
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
hanh luan » khanh luan, hang luan, hanh luat
thanh cau » thanh chau, thanh mau, nhanh cau
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu

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 (theo chu)) sang - hanh luan van ((phung cong) OR (nhung cong)) cong thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) sang - hanh luan van ((phung cong) OR (nhung cong)) cong thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chu)) sang - hanh luan van ((phung cong) OR (nhung cong)) cong thanh cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) sang - hanh luan van ((phung cong) OR (nhung cong)) cong thanh cau*.