Perhaps you should try some spelling variations:
thanh lay » thanh lap, thanh tay, thanh lam
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
dua tren » dung tren
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
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: vu sach ky nang x hoi. hieu ((ve cam) or (va cam)) xuc va thanh lay ((dua tren) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang x hoi. hieu ((ve cam) OR (va cam)) xuc va thanh lay ((dua tren) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang x hoi. hieu ((ve cam) or (va cam)) xuc va thanh lay ((dua tren) or (cua triet))*.