Perhaps you should try some spelling variations:
toan thanh » tran thanh, hoan thanh, tan thanh
toan thang » toan thong, thanh thang, tran thanh
kho tang » cao tang
cuu tre » cua tre, cau tren, cau treo
tang xa » trang xa, tang ma, lang xa
ban cuu » ban cua, ban cau, ban muu
xac kho » cac khoi, dac khoa, cac khoa
su xac » pu xac, su cac
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac kho tang xa hoi. hieu ((ve cam) or (va cam)) duc ((toan thanh) OR (toan thang)) ban cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac kho tang xa hoi. hieu ((ve cam) OR (va cam)) duc ((toan thanh) OR (toan thang)) ban cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac kho tang xa hoi. hieu ((ve cam) or (va cam)) duc ((toan thanh) OR (toan thang)) ban cuu tre".
• Adding a wildcard symbol may retrieve word variants: su xac kho tang xa hoi. hieu ((ve cam) or (va cam)) duc ((toan thanh) OR (toan thang)) ban cuu tre*.