Perhaps you should try some spelling variations:
tieu tinh » trieu tinh, tieu trinh, kieu tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
tang luan » dung luan
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, huong dan
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 tinh) or (lieu tinh)) - anh tang luan nang cong dan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tinh) OR (lieu tinh)) - anh tang luan nang cong dan ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tinh) or (lieu tinh)) - anh tang luan nang cong dan ((toan tap) or (toan ban))*.