Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van tham » van thanh, van tuan, van chat
van hanh » van thanh, ban hanh, van anh
dinh cuu » dinh chi
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
tham oc » tham nuoc, cham soc, tham hoa
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
oc van » hoc van, luoc van, quoc van
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky tang xa hoi. hieu van tham oc van hanh ((vi cuu) or (dinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky tang xa hoi. hieu van tham oc van hanh ((vi cuu) OR (dinh cuu)) tre.
• Adding a wildcard symbol may retrieve word variants: te san ky tang xa hoi. hieu van tham oc van hanh ((vi cuu) or (dinh cuu)) tre*.