Perhaps you should try some spelling variations:
hoang van » hang va
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
dang van » hang va
sanh tu » anh tu, danh tu, hanh tu
van cau » van dau, van hau, van chat
cau xuc » cam xuc, cau luc, cau truc
xuc van » duc van, luc van, vuc van
so sanh » do sanh
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh tu ((dang van) or (hoang van)) hoc. hieu van cau xuc van hanh ((vi cua) or (di cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh tu ((dang van) OR (hoang van)) hoc. hieu van cau xuc van hanh ((vi cua) OR (di cua)) triet.
• Adding a wildcard symbol may retrieve word variants: so sanh tu ((dang van) or (hoang van)) hoc. hieu van cau xuc van hanh ((vi cua) or (di cua)) triet*.