Perhaps you should try some spelling variations:
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
cap ly » cap y, cam ly, lap ly
va cao » va cac, va co, va dao
tap ly » tam ly, tap ky
vi cua » vai cua, di cua
va can » va chan, va cac, va con
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((cap ly) OR (tap ly)) nang x hoi. hieu ((va can) OR (va cao)) thuc va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((cap ly) or (tap ly)) nang x hoi. hieu ((va can) OR (va cao)) thuc va hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuat ((cap ly) or (tap ly)) nang x hoi. hieu ((va can) OR (va cao)) thuc va hanh vi cua tre*.