Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
thanh ve » hanh ve, thanh va, thanh vien
va thanh » gia thanh, ban thanh, va tinh
vu sach » vu bach, su sach
cao hoi » cau hoi, co hoi, cao hoc
va cham » va tham
va chat » van chat, va phat, cao chat
ve cua » le cua, de cua, te cua
tuc va » thuc va, truc va, tuc xa
y nang » ky nang, ly nang, v nang
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)) y nang cao hoi. lieu ((va cham) or (va chat)) tuc va thanh ve cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) y nang cao hoi. lieu ((va cham) OR (va chat)) tuc va thanh ve cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu khach)) y nang cao hoi. lieu ((va cham) or (va chat)) tuc va thanh ve cua te".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu khach)) y nang cao hoi. lieu ((va cham) or (va chat)) tuc va thanh ve cua te*.