Perhaps you should try some spelling variations:
sach phan » sach han, mach phan, sach phat
phan vien » nhan vien, phan kien, phan bien
song minh » tong minh, hoang minh, thong minh
gioi can » gioi van, gioi cam, gioi cau
can song » can dong, cau song, con song
gioi cao » gioi co, giai cao, gioi cam
cao cong » cac cong, cao dang, cua cong
te sach » toc sach
tu sach » thu sach, su sach, tu cach
che ve » chep ve, che vi, che viet
viec » viet

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach phan vien gioi can song minh ) or ( tu sach ((che ve) OR (che va)) gioi cao cong viec ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach phan vien gioi can song minh ) OR ( tu sach ((che ve) OR (che va)) gioi cao cong viec )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( te sach phan vien gioi can song minh ) or ( tu sach ((che ve) OR (che va)) gioi cao cong viec ))".
• Adding a wildcard symbol may retrieve word variants: (( te sach phan vien gioi can song minh ) or ( tu sach ((che ve) OR (che va)) gioi cao cong viec ))*.