Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh thai » nhanh thai, hinh thai, hanh tai
ban hanh » ban hang
cac cuoc » cac nuoc, ca cuoc, cac quoc
cua tre » cua te, cuu tre, dua tren
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
nang ho » nang hoc, nang co, tang ho
ho hai » hoc hai, pho hai, cho hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang ho hai. hieu ve ((cac cuoc) or (cam xuc)) ban hanh thai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ho hai. hieu ve ((cac cuoc) OR (cam xuc)) ban hanh thai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ho hai. hieu ve ((cac cuoc) or (cam xuc)) ban hanh thai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ho hai. hieu ve ((cac cuoc) or (cam xuc)) ban hanh thai ((cua tre) OR (cua triet))*.