Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh hai » tinh thai, tinh chat, trinh han
te sach » toc sach
lai hoi » dai hoi, lai hoa, lai roi
va tinh » may tinh
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va

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 y nang ((ma hoi) or (lai hoi)). lieu va cam xuc va tinh hai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((ma hoi) OR (lai hoi)). lieu va cam xuc va tinh hai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((ma hoi) or (lai hoi)). lieu va cam xuc va tinh hai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((ma hoi) or (lai hoi)). lieu va cam xuc va tinh hai ((cua tre) OR (cua triet))*.