Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
tieu tinh » trieu tinh, lieu tinh, kieu tinh
bien tinh » bi tinh, yen tinh, diep tinh
hanh manh » hanh mang, lanh manh, hoang manh
dang cong » dung cong
manh cua » doanh cua, ban cua
cua dang » cua cong, cua ban
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 (tieu trinh))) or (bien tinh)) - hanh manh cua dang cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((tieu tinh) OR (tieu trinh))) OR (bien tinh)) - hanh manh cua dang cong tac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((((tieu tinh) OR (tieu trinh))) or (bien tinh)) - hanh manh cua dang cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((((tieu tinh) OR (tieu trinh))) or (bien tinh)) - hanh manh cua dang cong tac toan ban*.