Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh ly » nganh y, nganh ky, nganh xay
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac nuoc
cac tac » cac toc, cac bac, cac dac
va doan » va doanh, van doan, va dan
via cua » gia cua, gian cua, giau cua
va cua » va chua, ca cua, ma 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 nganh ly nang xa hoi. hieu ve ((cac tuc) or (cac tac)) va doan ((va cua) OR (via cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nganh ly nang xa hoi. hieu ve ((cac tuc) OR (cac tac)) va doan ((va cua) OR (via cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc nganh ly nang xa hoi. hieu ve ((cac tuc) or (cac tac)) va doan ((va cua) OR (via cua)) triet".
• Adding a wildcard symbol may retrieve word variants: hoc nganh ly nang xa hoi. hieu ve ((cac tuc) or (cac tac)) va doan ((va cua) OR (via cua)) triet*.