Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
manh hanh » xanh hanh, danh thanh, minh thanh
phat duc » pham duc, phan duoc, pham duy
phan duc » pham duc, phan tu, phan dau
hanh dai » hanh tai, hanh dao, vanh dai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky nang xa hoi. lieu va ((phat duc) OR (phan duc)) manh hanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang xa hoi. lieu va ((phat duc) OR (phan duc)) manh hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang xa hoi. lieu va ((phat duc) OR (phan duc)) manh hanh dai cua tre*.