Perhaps you should try some spelling variations:
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
va cai » va cac, va bai, va dai
va cao » va cac, va co, va dao
tuc va » thuc va, truc va, tuc xa
di cua » doi cua, de cua, do 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 ty nang xa hoi. lieu ((va cai) or (va cao)) tuc va hanh ((di cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. lieu ((va cai) OR (va cao)) tuc va hanh ((di cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. lieu ((va cai) or (va cao)) tuc va hanh ((di cua) or (dai cua)) tre*.