Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cam luc » cam xuc, cau luc
hai cua » thai cua, dai cua, hoi cua
vai cua » dai cua, lai cua, bai cua
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
ty nang » ky nang, ty hang, ly nang
luc va » duc va, tuc va, loc va
ve cam » ve cham, ve cac, va cam

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 ((ty nang) or (ty xang)) xa hoi. hieu ve cam luc va hanh ((vai cua) or (hai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ty nang) OR (ty xang)) xa hoi. hieu ve cam luc va hanh ((vai cua) OR (hai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ty nang) or (ty xang)) xa hoi. hieu ve cam luc va hanh ((vai cua) or (hai cua)) tre*.