Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
ban thanh » ban hanh, ban hang
phan cua » nhan cua, than cua, phat cua
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
duc ban » duc tan, duc van, dua ban
va cam » va cham, va cac, va cao
su sac » su sach, su cac
su xac » pu xac, su cac
ve cam » ve cham, ve cac, ve cai

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