Perhaps you should try some spelling variations:
"thu canh trinh nhiet d hoc" » "thu canh trinh thiet d hoc", "thu canh trinh nghien d hoc", "thu canh trinh viet d hoc", "thu canh tranh nhiet d hoc", "thu hanh trinh nhiet d hoc", "thu canh tinh nhiet d hoc", "thuc hanh trinh nhiet d hoc", "thu cong trinh nhiet d hoc", "thu ban trinh nhiet d hoc", "thu canh trinh nhiet do hoc", "thu canh trinh nhiet de hoc", "thu canh trinh nhiet doi hoc", "thu canh trinh nhiet du hoc", "thu canh trinh nhiet ad hoc"
"su sach trach nhiem quoc hoi" » "su sach trac nghiem quoc hoi", "su sach tranh nhiem quoc hoi", "su sach truc nhiem quoc hoi", "su sat trach nhiem quoc hoi", "su sach trach nghiem quoc hoi", "su sach trach nhiem cuoc hoi", "su sach trach nghiem duoc hoi", "so sach trach nhiem quoc hoi", "vu sach trach nhiem quoc hoi"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("thu canh trinh nhiet d hoc") or ("su sach trach nhiem quoc hoi"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("thu canh trinh nhiet d hoc") OR ("su sach trach nhiem quoc hoi")).
• Removing quotes may allow a broader search: (( thu canh trinh nhiet d hoc ) or ( su sach trach nhiem quoc hoi )).
• Adding a wildcard symbol may retrieve word variants: (("thu canh trinh nhiet d hoc") or ("su sach trach nhiem quoc hoi"))*.