Perhaps you should try some spelling variations:
thanh than » thanh thanh, thanh thang, thanh toan
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, hieu ve
va thanh » gia thanh, ban thanh, va tinh
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang
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: vu sach y nang xa hoi. ((hieu van) or (lieu va)) bac xuc va thanh than ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang xa hoi. ((hieu van) OR (lieu va)) bac xuc va thanh than ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach y nang xa hoi. ((hieu van) or (lieu va)) bac xuc va thanh than ((cua tre) or (cua triet))*.