Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nganh ky » nganh y, nganh xay, hanh ky
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
canh ky » hanh ky, canh tay, thanh ky
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cac toc » cac toi, cac nuoc, cac thoi
vi cua » vai cua, di cua

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

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