Perhaps you should try some spelling variations:
may trinh » may tinh, lap trinh, quy trinh
su triet » su viet, su tien
trinh ve » trinh he, trinh va, trinh vi
ve triet » va trien
dang xay » dang van, van xay
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
sach ky » sach y, sach ty, sach kem
cac xuc » cam xuc, cac nuoc, chat xuc
xuc may » xuc hay, truc may, phuc may
sac ky » cac ky, sai ky
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach ky) or (sac ky)) dang xay hoi. hieu ve cac xuc may trinh ve ((su triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ky) OR (sac ky)) dang xay hoi. hieu ve cac xuc may trinh ve ((su triet) OR (ve triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ky) or (sac ky)) dang xay hoi. hieu ve cac xuc may trinh ve ((su triet) OR (ve triet))*".