Perhaps you should try some spelling variations:
su sach » so sach, vu sach
tinh va » tich va, trinh van, trinh vat
va tinh » may tinh
cuu tre » cua tre, cau tren, cau treo
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang
ve coc » ve cuoc, ve cac
luc va » duc va, tuc va, loc va
va cuu » va cau, va chu, va huu
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: su sach ((ky lang) or (ky tang)) xa hoi. hieu ((ve coc) or (ve co)) luc va tinh va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky lang) OR (ky tang)) xa hoi. hieu ((ve coc) OR (ve co)) luc va tinh va cuu tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky lang) or (ky tang)) xa hoi. hieu ((ve coc) or (ve co)) luc va tinh va cuu tre*.