Perhaps you should try some spelling variations:
lam truoc » lam thuoc, nam truoc, lam truong
hieu van » hieu va, thien van, lieu va
toc sach » hoc sach, doc sach, thuoc sach
danh cau » danh dau, danh ca, danh hau
truoc va » truc va, thuoc va, truong va
tu cach » tu cac
cau cua » cau qua, ca cua, cu cua
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (toc sach)) ky nang xa hoi. ((hieu ve) or (hieu van)) lam truoc va danh cau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (toc sach)) ky nang xa hoi. ((hieu ve) OR (hieu van)) lam truoc va danh cau cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (toc sach)) ky nang xa hoi. ((hieu ve) or (hieu van)) lam truoc va danh cau cua tre*.