Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tien » sach tren
thuc hang » thuc hanh, thu hang, phuc hang
hang khoa » dung khoa
luan cong » luat cong, luong cong, luan chung
cong mai » chong mai, cong hai, cong ma
mai minh » mai dinh, chi minh, van 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 tien) OR (sach thieu)) hoc chuyen đe ky thuat: kien thuc hang khoa luan cong mai minh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach tien) OR (sach thieu)) hoc chuyen đe ky thuat: kien thuc hang khoa luan cong mai minh".
• Adding a wildcard symbol may retrieve word variants: su ((sach tien) OR (sach thieu)) hoc chuyen đe ky thuat: kien thuc hang khoa luan cong mai minh*.