Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van dam » van nam, van dao, van dau
nang ma » tang ma, sang ma, nang cao
thuc va » thuc dan, thuc day
vi cua » vai cua, di cua
vu san » va san
ma hoi » mai hoi, xa hoi, ma hoa
vu ban » tu ban, va ban
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu san) OR (vu ban)) ky nang ma hoi. hieu van dam ((thuc va) or (thuc vat)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu san) OR (vu ban)) ky nang ma hoi. hieu van dam ((thuc va) OR (thuc vat)) hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu san) OR (vu ban)) ky nang ma hoi. hieu van dam ((thuc va) or (thuc vat)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((vu san) OR (vu ban)) ky nang ma hoi. hieu van dam ((thuc va) or (thuc vat)) hanh vi cua te*.