Perhaps you should try some spelling variations:
tan thanh » tran thanh, tang thanh, toan thanh
thanh vai » thanh hai, thanh van, thanh tai
cua triet » cua viet, su triet
hieu van » hieu va, thien van, lieu va
va triet » va thiet, va trien, ve triet
tu sach » thu sach, su sach, te sach
van bao » van ban, van dao
bao luc » bao thuc
luc tan » luc tai, duc tan, luc tam
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang x hoi. hieu van bao luc tan thanh vai ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. hieu van bao luc tan thanh vai ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. hieu van bao luc tan thanh vai ((cua triet) or (va triet))*.