Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham xuc » cam xuc, chat xuc, cham soc
cua tre » cua te, cuu tre, dua tren
dan day » da day, dan dat, dan da
te sach » toc sach
hieu ve » hieu va, hieu van
ky dang » ky nang, ky danh
ky sang » ky nang, ky tang, duy sang
ve cham » va cham, ve chat, vu cham
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau

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 sang) OR (ky dang)) ma hoi. hieu ve cham xuc va dan day ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky sang) OR (ky dang)) ma hoi. hieu ve cham xuc va dan day ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky sang) OR (ky dang)) ma hoi. hieu ve cham xuc va dan day ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky sang) OR (ky dang)) ma hoi. hieu ve cham xuc va dan day ((cua tre) or (cua triet))*.