Perhaps you should try some spelling variations:
thieu bien » thieu nien, tieu bieu, hien bien
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
bien cac » vien cac, dien cac, bien ca
nang ma » tang ma, sang ma, nang cao
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » va thanh, va danh, ban hanh
vai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, ma hoa
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach y) or (sac ky)) nang ma hoi. thieu bien cac xuc ((va hanh) OR (van hanh)) vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach y) OR (sac ky)) nang ma hoi. thieu bien cac xuc ((va hanh) OR (van hanh)) vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach y) or (sac ky)) nang ma hoi. thieu bien cac xuc ((va hanh) OR (van hanh)) vai cua triet".
• Adding a wildcard symbol may retrieve word variants: te ((sach y) or (sac ky)) nang ma hoi. thieu bien cac xuc ((va hanh) OR (van hanh)) vai cua triet*.