Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
qua cam » qua cham, qua cac, qua ca
cam tuc » cam xuc, cam tu, nam thuc
van cua » vang cua, ban cua, dan cua
tuc va » thuc va, truc va, tuc xa
x hoi » xa hoi, o hoi, 5 hoi
o hai » co hai, so hai, o lai

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 ty nang ((((x hoi) OR (x ho))) or (o hai)). hieu qua cam tuc va thanh van cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang ((((x hoi) OR (x ho))) OR (o hai)). hieu qua cam tuc va thanh van cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang ((((x hoi) OR (x ho))) or (o hai)). hieu qua cam tuc va thanh van cua triet*".