Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac xuc » cac nuoc, chat xuc, cac cuoc
ma hoi » mai hoi, xa hoi, ma hoa
va dan » ca dan, va dao, va dau
co cua » con cua, cong cua, cuoi cua

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 ky nang ma hoi. hieu va ((cac xuc) or (cam xuc)) va dan ((co cua) or (ca cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ma hoi. hieu va ((cac xuc) OR (cam xuc)) va dan ((co cua) OR (ca cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ma hoi. hieu va ((cac xuc) or (cam xuc)) va dan ((co cua) or (ca cua)) tre*.