Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, pham duc
va hanh » van hanh, va thanh, va danh
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va cuu » va chu, va huu
va cau » van cau, va cac, va dau

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 xa hoi. hieu ve ((cham xuc) OR (cham soc)) va hanh ((va cuu) or (va cau)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang xa hoi. hieu ve ((cham xuc) OR (cham soc)) va hanh ((va cuu) OR (va cau)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang xa hoi. hieu ve ((cham xuc) OR (cham soc)) va hanh ((va cuu) or (va cau)) tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang xa hoi. hieu ve ((cham xuc) OR (cham soc)) va hanh ((va cuu) or (va cau)) tre*.