Perhaps you should try some spelling variations:
sach trung » mach trung, sach thuong, sach dung
hoc chuyen » khong chuyen
trung hoc » trung quoc
thu canh » thuc hanh, thu cong, thu ban
tan dung » tran dung, tin dung, van dung
dung may » dung va, dung tai, mang may
su sach » so sach, vu sach
thu anh » thuy anh, thu oanh, tu anh
hoa tan » hoa dan, hoa van, hoa tin
tinh » trinh, dinh, minh

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 trung hoc chuyen đe ky thuat: kien ((thu anh) or (thu canh)) hoa tan dung may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach trung hoc chuyen đe ky thuat: kien ((thu anh) OR (thu canh)) hoa tan dung may tinh.
• Adding a wildcard symbol may retrieve word variants: su sach trung hoc chuyen đe ky thuat: kien ((thu anh) or (thu canh)) hoa tan dung may tinh*.