Perhaps you should try some spelling variations:
dang nam » dong nam, dan nam, dung nam
cuu tre » cua tre, cau tren, cau treo
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
hieu ve » hieu van
dang ma » dang mau, dang mam, dang mat
sac ky » cac ky, sai ky
va cuu » va cau, va chu, va huu
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((dang ma) or (dang nam)) hoi. ((hieu ve) or (hieu va)) am thuc va hanh va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((dang ma) OR (dang nam)) hoi. ((hieu ve) OR (hieu va)) am thuc va hanh va cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky ((dang ma) or (dang nam)) hoi. ((hieu ve) or (hieu va)) am thuc va hanh va cuu tre*.