Perhaps you should try some spelling variations:
tran thanh » ban thanh, van thanh, quan thanh
tan thanh » tang thanh, toan thanh, ban thanh
cham duc » pham duc, cham soc, pham duy
cua tre » cua te, cuu tre, cua triet
thi cua » thai cua, thi cuc, tri cua
ve cham » va cham, ve chat, vu cham
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
sac ky » cac ky, sai ky
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) or (nang x)) hoi. hieu ve cham duc ((tan thanh) OR (tran thanh)) thi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((nang xa) OR (nang x)) hoi. hieu ve cham duc ((tan thanh) OR (tran thanh)) thi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky ((nang xa) or (nang x)) hoi. hieu ve cham duc ((tan thanh) OR (tran thanh)) thi cua tre*".