Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
ban hanh » ban hang
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
va cua » va chua, via cua, ca cua
sinh 2 » sinh y
2 nang » v nang
cua te » cua tu

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 2 nang xa hoi. ((hieu va) or (hieu van)) cau luc ((va hanh) or (ban hanh)) va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sinh 2 nang xa hoi. ((hieu va) OR (hieu van)) cau luc ((va hanh) OR (ban hanh)) va cua te.
• Adding a wildcard symbol may retrieve word variants: hoc sinh 2 nang xa hoi. ((hieu va) or (hieu van)) cau luc ((va hanh) or (ban hanh)) va cua te*.