Perhaps you should try some spelling variations:
cau phuc » cau truc, chau phu, huu phuc
dang xay » dang van, van xay
so sach » so sanh, bo sach, co sach
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
sach ky » sac ky, sach y, sach ty
cau luc » cau truc
hieu va » lieu va, hieu qua
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
de cua » le cua, te cua, dieu cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky dang xay hoi. hieu va ((cau luc) or (cau phuc)) va hanh ((de cua) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky dang xay hoi. hieu va ((cau luc) OR (cau phuc)) va hanh ((de cua) OR (vai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: so sach ky dang xay hoi. hieu va ((cau luc) or (cau phuc)) va hanh ((de cua) or (vai cua)) tre*.