Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
dinh cau » dinh chau, dinh cuu, dinh cu
cau cua » cau qua, ca cua, cu cua
toc sac » toc sach, toc san, hoc sach
thuc va » thuc vat, thuc day
thi van » thi lan, thi hanh, thi nang
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky nang xa hoi. ((thien van) or (thi van)) nham ((thuc va) or (thuc dan)) dinh cau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky nang xa hoi. ((thien van) OR (thi van)) nham ((thuc va) OR (thuc dan)) dinh cau cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sac ky nang xa hoi. ((thien van) or (thi van)) nham ((thuc va) or (thuc dan)) dinh cau cua tre*.