Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
ky lang » ky tang, tay lang
ky dang » ky danh
hieu ve » hieu va, hieu van
va tinh » may tinh
tinh va » tich va, trinh van, trinh vat
cua tre » cua te, cuu tre, cua triet
co luc » coc luc, co luy
luc va » duc va, tuc va, loc va
va cua » va chua, via cua, ca cua
ve co » vo co, va co, de co

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 lang) or (ky dang))) or (ky nang)) xa hoi. hieu ve co luc va tinh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((((ky lang) OR (ky dang))) OR (ky nang)) xa hoi. hieu ve co luc va tinh va cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ((((ky lang) or (ky dang))) or (ky nang)) xa hoi. hieu ve co luc va tinh va cua tre*.