Perhaps you should try some spelling variations:
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
nam thuc » nam thuoc, am thuc, nam thu
xa thanh » va thanh, ha thanh, ta thanh
te sach » toc sach
nang xa » nang x, lang xa, nang ma
thuc xa » thuc xay, tuc xa, thuc va
vai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
vi cua » di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang xa hoi. ((hieu van) or (thien van)) nam thuc xa thanh ((vi cua) OR (vai cua)) tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. ((hieu van) OR (thien van)) nam thuc xa thanh ((vi cua) OR (vai cua)) tuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. ((hieu van) or (thien van)) nam thuc xa thanh ((vi cua) OR (vai cua)) tuc".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. ((hieu van) or (thien van)) nam thuc xa thanh ((vi cua) OR (vai cua)) tuc*.