Perhaps you should try some spelling variations:
thanh cac » hanh cac, thanh bac, thanh ca
van thanh » ban thanh, van tuan
te sach » toc sach
cac cua » cach cua, cac qua, ca cua
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
lang ha » long ha
co duc » co duoc, cao duc, do duc
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (thu hoach)) ky ((nang xa) or (lang ha)) hoi. lieu va co duc van thanh cac cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu hoach)) ky ((nang xa) OR (lang ha)) hoi. lieu va co duc van thanh cac cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thu hoach)) ky ((nang xa) or (lang ha)) hoi. lieu va co duc van thanh cac cua tre*.