Perhaps you should try some spelling variations:
ky lang » ky dang, ky tang, tay lang
hieu ve » hieu va, hieu van
coc tuc » coc luc, hoc thuc, doc thuc
va tinh » may tinh
tinh va » tich va, trinh van, trinh vat
cua tre » cua te, cuu tre, cua triet
su dai » sau dai, si dai, su tai
ve coc » ve cuoc, ve cac, ve co
tuc va » thuc va, truc va, tuc xa
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su dai ((ky lang) or (ky nang)) xa hoi. hieu ve coc tuc va tinh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su dai ((ky lang) OR (ky nang)) xa hoi. hieu ve coc tuc va tinh va cua tre.
• Adding a wildcard symbol may retrieve word variants: su dai ((ky lang) or (ky nang)) xa hoi. hieu ve coc tuc va tinh va cua tre*.