Perhaps you should try some spelling variations:
"nuoc hoach dinh su - so giao" » "nuoc sach dinh su - so giao", "nuoc hoang dinh su - so giao", "nuoc hoach dinh so - so giao", "nuoc hoach hinh su - so giao", "nuoc hoach dinh cu - so giao", "nuoc hoach dinh su - so giai", "nuoc hoach dinh su - hoc giao"
"thuoc sach tranh su - ton giao" » "hoc sach tranh su - ton giao", "nuoc sach tranh su - ton giao", "thuat sach tranh su - ton giao", "thuoc canh tranh su - ton giao", "thuoc sach trinh su - ton giao", "thuoc sach trang su - ton giao", "thuoc sach tranh cua - ton giao", "thuoc sach tranh su - toan giao", "thuoc sach tranh su - hoc giao", "thuoc sach tranh su - don gian"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("nuoc hoach dinh su - so giao") or ("thuoc sach tranh su - ton giao"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nuoc hoach dinh su - so giao") OR ("thuoc sach tranh su - ton giao")).
• Removing quotes may allow a broader search: (( nuoc hoach dinh su - so giao ) or ( thuoc sach tranh su - ton giao )).
• Adding a wildcard symbol may retrieve word variants: (("nuoc hoach dinh su - so giao") or ("thuoc sach tranh su - ton giao"))*.