Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
lai cua » dai cua, hai cua, thai cua
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va

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 ty nang xa hoi. hieu ((va cam) or (vien cac)) xuc va hanh ((lai cua) or (lai chau)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu ((va cam) OR (vien cac)) xuc va hanh ((lai cua) OR (lai chau)) triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu ((va cam) or (vien cac)) xuc va hanh ((lai cua) or (lai chau)) triet*.