Perhaps you should try some spelling variations:
dang van » hoang van, hang va
cua tre » cua te, cuu tre, cua triet
tinh va » tich va, trinh van, trinh vat
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
sai ky » sac ky
va coc » va cuoc, va cac, va hoc
va cua » va chua, via cua, ca cua
vu sai » vu hai, vu san, vu dai

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

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