Perhaps you should try some spelling variations:
trien thuoc » trien thuc, trien thuong, tin thuoc
tien khong » dien khong, tien chuong, tien luong
tien phong » trien phuong, tien luong, tien cong
thuoc sach » hoc sach, nuoc sach, thuat sach
phan cong » thanh cong
sach hoi » sach doi, sach moi, cach thoi
hoi phan » phoi phan, hoc phan, hoa phan
vu sach » vu bach, su sach, vu khach
cong ma » cuong ma, cong ha, cong va
ma dinh » mai dinh, va dinh, ba dinh

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 ((tien khong) OR (tien phong)) chuyen đe ky thuat: trien thuoc sach hoi phan cong ma dinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((tien khong) OR (tien phong)) chuyen đe ky thuat: trien thuoc sach hoi phan cong ma dinh".
• Adding a wildcard symbol may retrieve word variants: vu sach ((tien khong) OR (tien phong)) chuyen đe ky thuat: trien thuoc sach hoi phan cong ma dinh*.