Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh va » thanh van, hanh va, thanh ha
thanh te » thanh ve, thanh de, thanh le
dang xay » dang van, van xay
xuc van » duc van, luc van, vuc van
te sach » toc sach
lang xa » lang ha, lang van
hieu va » lieu va, hieu qua
sach o » sach lo, sac o, sach y
va cam » va cham, va cac, va cao

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 o ((lang xa) OR (dang xay)) hoi. hieu va cam xuc van ((thanh te) or (thanh va)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach o ((lang xa) OR (dang xay)) hoi. hieu va cam xuc van ((thanh te) OR (thanh va)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach o ((lang xa) OR (dang xay)) hoi. hieu va cam xuc van ((thanh te) or (thanh va)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach o ((lang xa) OR (dang xay)) hoi. hieu va cam xuc van ((thanh te) or (thanh va)) cua triet*.