Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
bien thuc » kien thuc, bien phuc, bien phu
chan dung » van dung, dan dung
thai tinh » thai binh, thai vinh, thanh tinh
sach tin » sach tien, sach kinh, sach tren
thuc anh » thuc hanh, thuy anh, thu anh
hoa chan » hoa phan, hoa chat, hoa han
tai tinh » tai dinh, tai sinh, tri tinh
so sach » so sanh, bo sach, co sach
tin hoc » sinh hoc
anh hoa » anh khoa, danh hoa, hanh hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach tin hoc chuyen đe ky thuat: bien thuc anh hoa chan dung ((tai tinh) or (thai tinh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach tin hoc chuyen đe ky thuat: bien thuc anh hoa chan dung ((tai tinh) OR (thai tinh)).
• Adding a wildcard symbol may retrieve word variants: so sach tin hoc chuyen đe ky thuat: bien thuc anh hoa chan dung ((tai tinh) or (thai tinh))*.