Perhaps you should try some spelling variations:
toan thanh » tran thanh, hoan thanh, toan thang
thanh ban » thanh san, thanh van, thanh bac
kho tang » cao tang
duc toan » duc tan, duc ton, duc hoan
cuu tre » cua tre, cau tren, cau treo
tang ma » mang may, tang van
ban cuu » ban cua, ban cau, ban muu
xac kho » cac khoi, dac khoa, cac khoa
su xac » pu xac, su cac
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai
ma hoi » mai hoi, xa hoi, ma hoa

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 ma hoi. hieu ((ve cam) or (va cam)) duc toan thanh ban cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac kho tang ma hoi. hieu ((ve cam) OR (va cam)) duc toan thanh ban cuu tre.
• Adding a wildcard symbol may retrieve word variants: su xac kho tang ma hoi. hieu ((ve cam) or (va cam)) duc toan thanh ban cuu tre*.