Perhaps you should try some spelling variations:
phan tai » pham tai, nhan tai, phan thi
so sach » bo sach, co sach, hoc sach
tai duc » tai cuc, mai duc, tai du
va phan » van phan, va phat, va phap
van bao » van ban, van dao
van hac » van hoc, van ha, van hai
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
so sanh » do sanh
duc tre » duoc tren, duc tien
xuc va » duc va, tuc va, luc va

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

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