Perhaps you should try some spelling variations:
"te sach trinh thiet bai hoc" » "te sach trinh viet bai hoc", "te sach trinh thi bai hoc", "te sach tranh thiet bai hoc", "te hanh trinh thiet bai hoc", "te sach kinh thiet bai hoc", "te sach trinh thiet bi hoc", "te sach trinh thiet hai hoc", "te sach trinh thuyet bai hoc", "toc sach trinh thiet bai hoc", "te sach trinh thiet dai hoc"
"tu sach tac nghiep va hoc" » "tu sach cac nghiep va hoc", "tu sach trac nghiem va hoc", "tu sach sach nghiep va hoc", "tu sach tac nghiep vu hoc", "tu sach bac nghiep va hoc", "tu sach tai nghiep va hoc", "tu sach tham nghiep va hoc", "thu sach tac nghiep va hoc", "su sach tac nghiep va hoc", "tu cach tac nghiep va hoc", "tu sach tac nghiep van hoc"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("te sach trinh thiet bai hoc") or ("tu sach tac nghiep va hoc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("te sach trinh thiet bai hoc") OR ("tu sach tac nghiep va hoc"))*.
• Removing quotes may allow a broader search: (( te sach trinh thiet bai hoc ) or ( tu sach tac nghiep va hoc ))*.