Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
danh lai » danh sai, gianh lai, dinh lam
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, nang ma
truc va » thuc va, thuc vat, trung va
lai cua » dai cua, hai cua, lai chau
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: ((su sach) or (vu sach)) ky nang xa hoi. lieu va cac ((truc va) or (thuc dan)) danh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang xa hoi. lieu va cac ((truc va) OR (thuc dan)) danh lai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ky nang xa hoi. lieu va cac ((truc va) or (thuc dan)) danh lai cua tre*.