Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc va
phuc van » phuc va, chuc van, khuc van
hieu van » hieu va, thien van, lieu va
hanh di » hanh vi, hanh de, hang di
van cau » van dau, van hau, van chat
sang ky » sang kyo, dang ky, tang ky
cua tre » cua te, cuu tre, cua triet
san ky » van ky, dan ky, ban ky
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc ((san ky) OR (sang ky)) nang x hoi. hieu van cau ((phuc van) or (thuc van)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc ((san ky) OR (sang ky)) nang x hoi. hieu van cau ((phuc van) OR (thuc van)) hanh di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc ((san ky) OR (sang ky)) nang x hoi. hieu van cau ((phuc van) or (thuc van)) hanh di cua tre".
• Adding a wildcard symbol may retrieve word variants: nuoc ((san ky) OR (sang ky)) nang x hoi. hieu van cau ((phuc van) or (thuc van)) hanh di cua tre*.