Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » chat xuc, cham soc, pham duc
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
v nang » va nang, vu nang, van nang
y nang » ky nang, ly nang, may nang
va dan » ca dan, va dao, va dau
dan di » danh di, dan da, dan de
di cuu » di cau, di cua, dinh cuu

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