Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
kho tang » cao tang
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
ky tang » ky nang, ky dang, ky trong
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
va cam » va cham, va cac, va cao
su sac » su sach, su cac, su xac
ma hoi » mai hoi, xa hoi, me hoi

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) OR (kho tang)) ((ma hoi) or (ma hoa)). hieu va cam duc ban thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ((ky tang) OR (kho tang)) ((ma hoi) OR (ma hoa)). hieu va cam duc ban thanh dai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ((ky tang) OR (kho tang)) ((ma hoi) or (ma hoa)). hieu va cam duc ban thanh dai cua tre*".