Perhaps you should try some spelling variations:
tinh vinh » tinh ninh, tinh binh, tinh hinh
hieu van » hieu va, thien van, lieu va
cau treo » cau theo, cau tren, cau triet
cao hoi » cau hoi, co hoi, cao hoc
nam xuc » cam xuc, nam xua, nam thuc
va tinh » may tinh
cuu tre » cua tre, cau tren
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: tu cac ky nang cao hoi. hieu van nam xuc va tinh vinh ((cuu tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang cao hoi. hieu van nam xuc va tinh vinh ((cuu tre) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang cao hoi. hieu van nam xuc va tinh vinh ((cuu tre) or (cau treo))*.