Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
hanh luat » nganh luat, hang luan, hanh lam
van duong » van dung, van phong, hai duong
trong dan » trong dang, trong san, trong tan
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien thanh - hanh luat ((van duong) or (van dong)) trong dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - hanh luat ((van duong) OR (van dong)) trong dan phan dau.
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - hanh luat ((van duong) or (van dong)) trong dan phan dau*.