Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
lieu tinh » trieu tinh, diep tinh, bien tinh
tong cong » trong cong, cong cong, dung cong
manh toan » thanh toan, tinh toan
doi lieu » duoc lieu, doi chieu, du lieu
tran van » luan van
van tong » van thong, van trong, van tuong

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - thanh tran van tong cong ((manh toan) OR (anh tuan)) cao~.
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - thanh tran van tong cong ((manh toan) or (anh tuan)) cao*.