Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
thuc day » thuc dan, thuc vat
day hanh » day nhanh, day thanh, dao hanh
vua chua » sua chua, cua chua, tua chua
ty dong » tay dong, tu dong, ly dong
hieu vu » hieu va, hieu ve, hieu su
vu pham » su pham, vi pham, vu kham
va chua » ca chua, va chu, a chua
te sach » toc sach

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 ((ty dong) or (ty xang)) xa hoi. hieu vu pham thuc day hanh ((va chua) OR (vua chua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty dong) OR (ty xang)) xa hoi. hieu vu pham thuc day hanh ((va chua) OR (vua chua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty dong) or (ty xang)) xa hoi. hieu vu pham thuc day hanh ((va chua) OR (vua chua)) triet".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty dong) or (ty xang)) xa hoi. hieu vu pham thuc day hanh ((va chua) OR (vua chua)) triet*.