Perhaps you should try some spelling variations:
may trinh » may tinh, lap trinh, quy trinh
hoc sach » hoc sinh, hoc cac, hoc anh
trinh ve » trinh he, trinh va, trinh vi
su triet » su viet, su tien, ve triet
dang xay » dang van, van xay
ve cham » ve chat, vu cham, ve chim
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
xay hoi » xa hoi, tay hoi, cay phoi
xuc may » xuc hay, truc may, phuc may
ky dang » ky nang, ky danh
ve su » va su

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky dang xay hoi. hieu ((ve cham) OR (va cham)) xuc may trinh ve su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky dang xay hoi. hieu ((ve cham) OR (va cham)) xuc may trinh ve su triet".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky dang xay hoi. hieu ((ve cham) OR (va cham)) xuc may trinh ve su triet*.