Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
hieu van » hieu va, thien van, lieu va
vu sach » vu bach, su sach
tinh vi » trinh vi, tinh voi, tinh va
va tinh » may tinh
nam xuc » cam xuc, nam xua, nam thuc
cuu tre » cua tre, cau tren, cau treo
co hoi » co hoc, co loi
xuc va » duc va, tuc va, luc va
vi cuu » vi luu, vinh cuu

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) OR (vu khach)) ky nang ((co hoi) or (xa hoi)). hieu van nam xuc va tinh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) ky nang ((co hoi) OR (xa hoi)). hieu van nam xuc va tinh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu khach)) ky nang ((co hoi) or (xa hoi)). hieu van nam xuc va tinh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu khach)) ky nang ((co hoi) or (xa hoi)). hieu van nam xuc va tinh vi cuu tre*.