Perhaps you should try some spelling variations:
tan thanh » tran thanh, tang thanh, toan thanh
thanh thi » thanh tai, nhanh thi, thanh tri
cham duc » pham duc, cham soc, pham duy
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
thi cua » thai cua, thi cuc, tri cua
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su xac
su cac » tu cac, su cao, su can

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 cac)) ky ((nang xa) or (nang x)) hoi. hieu ve cham duc tan thanh thi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su cac)) ky ((nang xa) OR (nang x)) hoi. hieu ve cham duc tan thanh thi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su cac)) ky ((nang xa) or (nang x)) hoi. hieu ve cham duc tan thanh thi cua tre*".