Perhaps you should try some spelling variations:
nhan tai » hang tai, van tai, toan tai
co sach » bo sach, cuon sach, hoc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
van hac » van hoc, van ha, van hai
van bao » van ban, van dao
cuc tre » duc tre, cua tre, cuu tre
xuc va » tuc va, luc va, xac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ty nang xa hoi. hieu ((van hac) or (van bao)) ((xuc va) or (duc va)) nhan tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ty nang xa hoi. hieu ((van hac) OR (van bao)) ((xuc va) OR (duc va)) nhan tai cuc tre.
• Adding a wildcard symbol may retrieve word variants: co sach ty nang xa hoi. hieu ((van hac) or (van bao)) ((xuc va) or (duc va)) nhan tai cuc tre*.