Perhaps you should try some spelling variations:
tieu tinh » trieu tinh, tieu trinh, lieu tinh
hanh dung » thanh dung, anh dung, manh dung
hanh dong » ha dong
cua trong » cua truong, cua trung, qua trong
anh dong » anh huong, anh son
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan tap » toan 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 - ((hanh dung) or (((hanh dong) or (anh dong)))) cua trong cong tap toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((hanh dung) OR (((hanh dong) OR (anh dong)))) cua trong cong tap toan tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((hanh dung) or (((hanh dong) or (anh dong)))) cua trong cong tap toan tap*.