Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
doc sach » hoc sach, toc sach, dac sac
thu nang » thi nang, thu hang, thu bang
hanh vai » hanh vi, hanh va, hanh tai
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc sach) OR (nuoc sach)) thu nang xa hoi. hieu va cam tuc va hanh vai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc sach) OR (nuoc sach)) thu nang xa hoi. hieu va cam tuc va hanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((doc sach) OR (nuoc sach)) thu nang xa hoi. hieu va cam tuc va hanh vai cuu tre*.