Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
vat thanh » dat thanh, gat thanh, tat thanh
hieu van » hieu va, thien van, lieu va
hoc cac » hoc cao
nang xa » nang x, lang xa, nang ma
ca viet » va viet, co viet, hoa viet
van am » van nam, van lam, van dam
doi ca » doi cua, doi cay, duoi ca
thuc » thu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sinh) or (hoc cac)) ky nang xa hoi. hieu van am thuc vat thanh doi ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sinh) OR (hoc cac)) ky nang xa hoi. hieu van am thuc vat thanh doi ca viet.
• Adding a wildcard symbol may retrieve word variants: ((hoc sinh) or (hoc cac)) ky nang xa hoi. hieu van am thuc vat thanh doi ca viet*.