Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh oai
thanh dat » thanh san, thanh hai, thanh van
ke mang » ke nang, ke trang
may thi » may thoi, day thi, mai thi
hieu ve » hieu va, hieu van
cua tre » cuu tre, cua triet, dua tren
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
su sac » su sach, su cac, su xac
ve cam » ve cham, ve cac, va cam
sac ke » tac ke, sac ky, cac ke
cua te » cua tu

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 ke mang may thi. hieu ve cam duc ban ((thanh dai) or (thanh dat)) ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ke mang may thi. hieu ve cam duc ban ((thanh dai) OR (thanh dat)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ke mang may thi. hieu ve cam duc ban ((thanh dai) or (thanh dat)) ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sac ke mang may thi. hieu ve cam duc ban ((thanh dai) or (thanh dat)) ((cua tre) OR (cua te))*.