Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
theo chau » theo chu, theo chieu, theo phap
chau tinh » cuu tinh, ha tinh, cua tinh
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chau tinh - hanh trinh luan ((hang cong) or (dang cong)) dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chau tinh - hanh trinh luan ((hang cong) OR (dang cong)) dan than ban.
• Adding a wildcard symbol may retrieve word variants: theo chau tinh - hanh trinh luan ((hang cong) or (dang cong)) dan than ban*.