Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
hoc sac » hoc sach, hoc cac, hoc mac
nang xa » lang xa, nang ma, mang xa
van cam » van nam, van lam, van cau
va hanh » van hanh, va thanh, va danh
sac ky » cac ky, sai ky
cuc te » cua te, cuc thue, cuc tieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sac ky ((nang xa) or (nang x)) hoi. hieu van cam xuc ((va hanh) or (ban hanh)) tai cuc te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky ((nang xa) OR (nang x)) hoi. hieu van cam xuc ((va hanh) OR (ban hanh)) tai cuc te.
• Adding a wildcard symbol may retrieve word variants: hoc sac ky ((nang xa) or (nang x)) hoi. hieu van cam xuc ((va hanh) or (ban hanh)) tai cuc te*.