Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nang xa » nang x, lang xa, nang ma
van cam » van nam, van cau, van dam
van lam » van nam
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu ((van cam) or (van lam)) xuc va hanh ((di cua) OR (de cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu ((van cam) OR (van lam)) xuc va hanh ((di cua) OR (de cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. hieu ((van cam) or (van lam)) xuc va hanh ((di cua) OR (de cua)) tre".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu ((van cam) or (van lam)) xuc va hanh ((di cua) OR (de cua)) tre*.