Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
trinh cua » trinh luat, trinh quan, trinh luan
hang hang » nang hang, cang thang, hung thang
hang tinh » dang tinh, bang tinh, hanh tinh
doc hieu » toc thieu, hoc thieu, hoc hien
tinh cua » sinh cua, tinh chat, tranh cua
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu lang - hanh ((trinh cua) or (tinh cua)) hang hang tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu lang - hanh ((trinh cua) OR (tinh cua)) hang hang tinh toan ban*.