Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
cang than » cang thang, sang than, cung than
cua trong » cua truong, cua trung, qua trong
theo doi » theo duoi, theo don, theo dong
doi hanh » doc hanh, doi khang, thi hanh
than cua » nhan cua, thai cua, ban cua
dan toan » van toan, dan than, manh toan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo doi hanh - cang than cua trong cong ((dan toan) or (thanh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo doi hanh - cang than cua trong cong ((dan toan) OR (thanh toan)) tap.
• Adding a wildcard symbol may retrieve word variants: theo doi hanh - cang than cua trong cong ((dan toan) or (thanh toan)) tap*.