Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
phan cua » nhan cua, than cua, phat cua
cua tre » cua te, cuu tre, cua triet
duc ban » duc tan, duc van, duc man
dua ban » dia ban, cua ban, qua ban
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
hieu v » hieu va, hieu 2, hieu _
su sac » su sach, su cac, su xac

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