Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
phan xuong » phan cong
thieu hoc » hieu hoc, tieu hoc, thieu so
thuc bach » truc bach, thuoc sach, thuc hanh
thuc cach » thuoc sach, truoc cach, thuc hanh
xuong dan » huong dan, xuong san, tuong dan
hoa phan » hoa dan, co phan
dan minh » doan minh, dang minh, van minh
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thieu hoc chuyen đe ky thuat: kien ((thuc bach) or (thuc cach)) hoa phan xuong dan minh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thieu hoc chuyen đe ky thuat: kien ((thuc bach) OR (thuc cach)) hoa phan xuong dan minh.
• Adding a wildcard symbol may retrieve word variants: su sach thieu hoc chuyen đe ky thuat: kien ((thuc bach) or (thuc cach)) hoa phan xuong dan minh*.