Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
vuc van » duc van, luc van, thuc van
xuc van » duc van, luc van, xuc ban
vu cham » va cham, vu kham, tu cham
san kho » san khoa, lan kho, san ho
hieu vu » hieu va, hieu ve, hieu su
tang ha » lang ha, tang ma, trung ha
san cho » sang cho, san chi, san co
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((san kho) or (san cho)) tang ha noi. hieu vu cham ((xuc van) OR (vuc van)) thanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((san kho) OR (san cho)) tang ha noi. hieu vu cham ((xuc van) OR (vuc van)) thanh va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((san kho) or (san cho)) tang ha noi. hieu vu cham ((xuc van) OR (vuc van)) thanh va cua tre".
• Adding a wildcard symbol may retrieve word variants: thu ((san kho) or (san cho)) tang ha noi. hieu vu cham ((xuc van) OR (vuc van)) thanh va cua tre*.