Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
manh toan » tinh toan
theo yeu » theo tieu, thiet yeu, theo chu
cua dung » cua dang, cua dong, qua dung
yeu tin » yeu tan, hieu tin, lieu tin

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo yeu tin - hanh trinh cua dung cong ((((manh toan) or (anh tuan))) or (thanh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo yeu tin - hanh trinh cua dung cong ((((manh toan) OR (anh tuan))) OR (thanh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo yeu tin - hanh trinh cua dung cong ((((manh toan) or (anh tuan))) or (thanh toan)) cau*.