Perhaps you should try some spelling variations:
tinh doi » trinh doc, trinh do, tinh hoc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
dao duc » giao duc, tao duoc
va tinh » may tinh
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky
ve dao » de dao, va dao, ve bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach y) or (sac ky)) nang xa hoi. hieu ve dao duc va tinh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach y) OR (sac ky)) nang xa hoi. hieu ve dao duc va tinh doi cua tre.
• Adding a wildcard symbol may retrieve word variants: thu ((sach y) or (sac ky)) nang xa hoi. hieu ve dao duc va tinh doi cua tre*.