Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
thanh tran » thanh trang, thanh toan, thanh tra
van truong » tang truong, xuan truong, vien truong
phuong dan » phuong danh, phuong doan, phuong lan
tieu tinh » trieu tinh, lieu tinh, kieu tinh
tran van » luan van
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: theo ((tieu tinh) or (tieu trinh)) - thanh tran van truong ((phuong dan) OR (huong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tinh) OR (tieu trinh)) - thanh tran van truong ((phuong dan) OR (huong dan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu tinh) or (tieu trinh)) - thanh tran van truong ((phuong dan) OR (huong dan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tinh) or (tieu trinh)) - thanh tran van truong ((phuong dan) OR (huong dan)) toan cao*.