Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
danh hoi » danh hoa, dan hoi, danh hoc
vu sach » vu bach, su sach
hoi cua » hoi chuc
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam tuc » cam tu, nam thuc, dam thuc
va danh » va dinh, va dan, va hanh
cua te » cua tu

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