Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, phan duc
pham duy » pham duc
tho cua » thao cua, tho ca, tro cua
anh tho » anh khoa, anh thuc
van anh » van thanh, tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
su sac » 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) OR (su sach)) ky nang xa hoi. hieu ve ((cham duc) or (pham duy)) van anh tho cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su sach)) ky nang xa hoi. hieu ve ((cham duc) OR (pham duy)) van anh tho cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su sach)) ky nang xa hoi. hieu ve ((cham duc) or (pham duy)) van anh tho cua tre*".