Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
khang cong » hang cong, thanh cong, dang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
trang van » tran van, trang va, trung van
trong van » trong cac
tang van » dang van, hoang van, tang luan
cong san » cong tac
san quan » van quan, ban quan, dan quan
quan ha » quan he

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 ((((trang van) OR (tang van))) or (trong van)) khang cong san quan ha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - hanh ((((trang van) OR (tang van))) OR (trong van)) khang cong san quan ha.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien thanh - hanh ((((trang van) OR (tang van))) or (trong van)) khang cong san quan ha".
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - hanh ((((trang van) OR (tang van))) or (trong van)) khang cong san quan ha*.