Perhaps you should try some spelling variations:
tieu tinh » tieu trinh, lieu tinh, kieu tinh
hanh tang » hanh trang, anh tang, hanh mang
luan hang » luan han, luan hung, luan tang
luan nang » luan van, van nang, luan san
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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 tinh) OR (trieu tinh)) - hanh tang ((luan hang) or (luan nang)) cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tinh) OR (trieu tinh)) - hanh tang ((luan hang) OR (luan nang)) cong tac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu tinh) OR (trieu tinh)) - hanh tang ((luan hang) or (luan nang)) cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tinh) OR (trieu tinh)) - hanh tang ((luan hang) or (luan nang)) cong tac toan ban*.