Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh ha
thanh van » thanh san, thanh toan, thanh phan
dang mau » dong mau, dang van, dang su
cua tre » cua te, cuu tre, cua triet
dang ma » dang mam, dang mat, tang ma
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
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 sac ky ((dang ma) OR (dang mau)) hoi. hieu va cam duc ban ((thanh dat) or (thanh van)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((dang ma) OR (dang mau)) hoi. hieu va cam duc ban ((thanh dat) OR (thanh van)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky ((dang ma) OR (dang mau)) hoi. hieu va cam duc ban ((thanh dat) or (thanh van)) cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky ((dang ma) OR (dang mau)) hoi. hieu va cam duc ban ((thanh dat) or (thanh van)) cua tre*.