Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
chat cuc » chat cua, chat xuc, chi cuc
va thanh » gia thanh, ban thanh, va tinh
thanh le » thinh le, thanh ve, thanh de
vu sach » vu bach, su sach, vu khach
ty nang » ty xang, ty hang, ly nang
va chat » van chat, va phat, cao chat
cua tre » cua te, cuu tre, dua tren
cuc va » chuc va, duc va, cuu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ((ty nang) or (ky nang)) xa hoi. lieu va chat cuc va thanh le ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((ty nang) OR (ky nang)) xa hoi. lieu va chat cuc va thanh le ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ty nang) or (ky nang)) xa hoi. lieu va chat cuc va thanh le ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: vu sach ((ty nang) or (ky nang)) xa hoi. lieu va chat cuc va thanh le ((cua tre) OR (cua triet))*.