Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang xay » dang xay, nganh xay, nang xuan
dan khai » dang khai, van khai, dang khoi
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, dua tren
dan hai » doan hai, dang hai, van hai
su sach » so sach, vu sach
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
xuc va » duc va, tuc va, luc va
ve cac » va cac, vien cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xay hoi. hieu ve cac xuc va ((dan hai) OR (dan khai)) ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xay hoi. hieu ve cac xuc va ((dan hai) OR (dan khai)) ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xay hoi. hieu ve cac xuc va ((dan hai) OR (dan khai)) ((cua tre) or (cua triet))*".