Perhaps you should try some spelling variations:
moi nganh » khoi nganh, hoc nganh, moi ngay
so nganh » so ngan, hoc nganh, doi nganh
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
va danh » va dinh, va dan, va hanh
van cac » van hac, van cau, van bac
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so nganh) OR (moi nganh)) ky nang xa hoi. hieu van cac du ((van hanh) or (va danh)) vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so nganh) OR (moi nganh)) ky nang xa hoi. hieu van cac du ((van hanh) OR (va danh)) vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so nganh) OR (moi nganh)) ky nang xa hoi. hieu van cac du ((van hanh) or (va danh)) vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((so nganh) OR (moi nganh)) ky nang xa hoi. hieu van cac du ((van hanh) or (va danh)) vi cuu tre*.