Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh han
hieu lang » chieu sang, hieu quang, nhieu tang
hang cong » dang cong, hang nong, bang cong
van thanh » ban thanh, van tuan
thanh cau » thanh chau, thanh mau, nhanh cau
doi hieu » doi chieu, doc hieu, doi hien
cong van » cong vang, cong san, song van
luat » luan, xuat

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 luat) or (trinh quan)) hang cong van thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - hanh ((trinh luat) OR (trinh quan)) hang cong van thanh cau.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - hanh ((trinh luat) or (trinh quan)) hang cong van thanh cau*.