Perhaps you should try some spelling variations:
thieu vien » thieu nien, thieu bien, thu vien
cua triet » su triet, va triet
van hanh » van thanh, ban hanh, van anh
cua viet » ca viet, hoa viet, cua vat
sang ma » tang ma, nang ma, sang tao
sach ky » sach y, sach ty, sach kem
vien da » vien dai, hien dai
xuc van » duc van, luc van, vuc van
hanh va » hang va, hanh vi
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 ky) or (sac ky)) sang ma hoi. thieu vien da xuc van hanh va ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) sang ma hoi. thieu vien da xuc van hanh va ((cua triet) OR (cua viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sac ky)) sang ma hoi. thieu vien da xuc van hanh va ((cua triet) OR (cua viet))*".