Perhaps you should try some spelling variations:
thien van » thi van
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
nam tuc » nam thuc, nam truc, nam tu
xa hanh » xa thanh, xa khanh, va hanh
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. ((lieu va) or (thien van)) nam tuc xa hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. ((lieu va) OR (thien van)) nam tuc xa hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. ((lieu va) or (thien van)) nam tuc xa hanh vi cua tu*.