Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu lang » chieu sang, hieu quang, nhieu tang
trinh cua » tinh cua, trinh luat, trinh quan
trong tan » trong quan, trong cac, trong ca
tranh ban » trinh ban, tranh hang, tranh luan
doi hieu » doi chieu, doc hieu, doi hien
cua dung » cua dang, cua dong, qua dung
tran ban » tran van, toan ban, tran bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - hanh trinh cua dung trong tan ((tran ban) or (tranh ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - hanh trinh cua dung trong tan ((tran ban) OR (tranh ban)).
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - hanh trinh cua dung trong tan ((tran ban) or (tranh ban))*.