Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hanh trinh » canh tranh, hanh chinh
luat nhung » luat chung, luat thuong, thuat nhung
hoc thien » hoc hien, hoc thieu, hoc thiet
trong van » trong cac
hoang van » hang va
quan cau » quang cao, toan cau, quan ha

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 hach - hanh trinh luat nhung ((trong van) or (hoang van)) quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh trinh luat nhung ((trong van) OR (hoang van)) quan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh trinh luat nhung ((trong van) or (hoang van)) quan cau*.