Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
pham duy » pham duc
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
vu pham » su pham, vi pham, vu kham
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
duy va » duy vat, duy van, day va
va cua » va chua, via cua, ca cua

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 xa hoi. hieu vu pham duy va danh va cua tre~.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu vu pham duy va danh va cua tre*.