Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
danh dum » danh du, anh duc, danh tu
van danh » van doanh, van anh, van hanh
vu sach » vu bach, su sach
cam tuc » cam xuc, cam tu, nam thuc
dum cua » duy cua, dam cua, dung cua
ly vang » ly hang, ly van, ly quang
vang xa » lang xa, mang xa, ang xa
hieu va » hieu qua
tuc van » thuc van, truc van, tuc va
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)) ly vang xa hoi. ((hieu va) OR (lieu va)) cam tuc van danh dum cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) ly vang xa hoi. ((hieu va) OR (lieu va)) cam tuc van danh dum cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (vu khach)) ly vang xa hoi. ((hieu va) OR (lieu va)) cam tuc van danh dum cua te".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (vu khach)) ly vang xa hoi. ((hieu va) OR (lieu va)) cam tuc van danh dum cua te*.