Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh luan » tranh luan, thanh xuan, thanh tuan
duong cong » dung cong, duong trong, trong cong
luong cong » dung cong, trong cong, cong cong
ho chieu » theo chieu, hoc thieu, doi chieu
van tay » van tan, van tam, van ty
van tai » von tai, van tuan

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 tinh - thanh luan van ((duong cong) OR (luong cong)) ((van tay) or (van tai)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh luan van ((duong cong) OR (luong cong)) ((van tay) OR (van tai)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh luan van ((duong cong) OR (luong cong)) ((van tay) or (van tai)) cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh luan van ((duong cong) OR (luong cong)) ((van tay) or (van tai)) cao*.