Perhaps you should try some spelling variations:
thanh tuan » thanh toan, thanh xuan, thanh thanh
hanh trinh » canh tranh, hanh chinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
hoc hieu » hoc thieu, hoc hien, doc hieu
cua dung » cua dang, cua dong, qua dung

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

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