Perhaps you should try some spelling variations:
hoc nhanh » hoc nganh, hoc phan
hoc anh » hoc nganh, ngoc anh, hoc sinh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
va dau » va dao
dau di » da di, dau da, dau do
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc anh) or (hoc nhanh)) ky lang xa hoi. ((hieu ve) or (lieu va)) pham duc va dau di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc anh) OR (hoc nhanh)) ky lang xa hoi. ((hieu ve) OR (lieu va)) pham duc va dau di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((hoc anh) or (hoc nhanh)) ky lang xa hoi. ((hieu ve) or (lieu va)) pham duc va dau di cua tre*.