Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
pham thuc » phap thuc, pham chuc, nham thuc
day hanh » day nhanh, day thanh, dao hanh
thuc day » thuc dan, thuc vat
sach ky » sac ky, sach y, sach ty
hanh ca » hanh cac, hanh cat, hanh cua
vu pham » su pham, vi pham, vu kham
hieu vu » hieu va, hieu ve, hieu su
te sach » toc sach
dung ha » dung va, dung he, dung khoa
dang ha » dong ha, lang ha, tang ha
dang xa » dang xay, lang xa, dang va
ca cua » co cua

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