Perhaps you should try some spelling variations:
vao triet » va triet, mao triet, va trien
van hanh » van thanh, ban hanh, van anh
hieu va » hieu qua
xuc van » duc van, luc van, vuc van
sach v » sach va, sach y, sach vay
sach 2 » sach y
vi vao » di vao, vi van
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc ((sach v) OR (sach 2)) nang x hoi. ((hieu va) or (lieu va)) cam xuc van hanh vi vao triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc ((sach v) OR (sach 2)) nang x hoi. ((hieu va) OR (lieu va)) cam xuc van hanh vi vao triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc ((sach v) OR (sach 2)) nang x hoi. ((hieu va) or (lieu va)) cam xuc van hanh vi vao triet".
• Adding a wildcard symbol may retrieve word variants: thuoc ((sach v) OR (sach 2)) nang x hoi. ((hieu va) or (lieu va)) cam xuc van hanh vi vao triet*.