Perhaps you should try some spelling variations:
ky lang » ky nang, ky dang, ky tang
hoa hoi » khoa hoi, hoa doi, hoc hoi
hieu va » lieu va, hieu qua
tinh va » tich va, trinh van, trinh vat
cua tre » cua te, cuu tre, cua triet
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
va coc » va cuoc, va cac, va hoc
luc va » tuc va, loc va
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: vu sac ky lang ((hoa hoi) or (hoa hoc)). hieu va coc ((luc va) or (duc va)) tinh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky lang ((hoa hoi) OR (hoa hoc)). hieu va coc ((luc va) OR (duc va)) tinh va cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sac ky lang ((hoa hoi) or (hoa hoc)). hieu va coc ((luc va) or (duc va)) tinh va cua tre*.