Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
duc van » duc va, duc tan, duc manh
duc ban » duc tan, dua ban, duc man
ve cham » va cham, ve chat, vu cham
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cac, va cam, 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 sac ky tang ma hoi. hieu ((ve cam) or (ve cham)) ((duc ban) OR (duc van)) thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky tang ma hoi. hieu ((ve cam) OR (ve cham)) ((duc ban) OR (duc van)) thanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky tang ma hoi. hieu ((ve cam) or (ve cham)) ((duc ban) OR (duc van)) thanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky tang ma hoi. hieu ((ve cam) or (ve cham)) ((duc ban) OR (duc van)) thanh dai cua tre*.