Perhaps you should try some spelling variations:
trien thuoc » trien thuc, trien thuong, tin thuoc
hoc chuyen » khong chuyen
thuoc sach » hoc sach, nuoc sach, thuat sach
phan dang » phan dau, phan cong, nhan dan
vu khach » vu khanh, vu khac, vay khach
tien hoc » tin hoc, tien hoa, dien hoc
sach hoa » sach ha, sach hoi, bach hoa
hoa phan » hoa dan, co phan
dang xay » dang van, van xay
xay dinh » xac dinh, xuan dinh, xay dung
vu sach » vu bach, su sach

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