Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
may trinh » may tinh, quy trinh, tao trinh
sach ky » sac ky, sach y, sach ty
te sach » toc sach
dang ha » dong ha, dung ha, lang ha
dang xa » dang xay, lang xa, dang va
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam
ve cua » le cua, de cua, te 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)) hoi. hieu ve cam xuc ((may trinh) OR (lap trinh)) ve cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((dang xa) OR (dang ha)) hoi. hieu ve cam xuc ((may trinh) OR (lap trinh)) ve cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((dang xa) or (dang ha)) hoi. hieu ve cam xuc ((may trinh) OR (lap trinh)) ve cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((dang xa) or (dang ha)) hoi. hieu ve cam xuc ((may trinh) OR (lap trinh)) ve cua triet*.