Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
tinh tang » tinh trang, tinh sang, tinh lang
tinh bang » tinh sang, tinh lang, tinh quang
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban

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 trinh - ((tinh tang) OR (tinh bang)) luan nang cong manh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu trinh - ((tinh tang) OR (tinh bang)) luan nang cong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu trinh - ((tinh tang) OR (tinh bang)) luan nang cong manh toan ban*.