Perhaps you should try some spelling variations:
"thu hoach toan hoc ki đong luc" » "thu hach toan hoc ki đong luc", "thu hoach toan khoa ki đong luc", "thu hoach van hoc ki đong luc", "thu hoach hoa hoc ki đong luc", "thu hoach toan hoc ky đong luc", "thu hoach toan hoc kinh đong luc", "thu hoach toan hoc khoi đong luc"
"su sach ngan bo chi đong luc" » "su sach ngon bo chi đong luc", "su sach nha bo chi đong luc", "su sach han bo chi đong luc", "so sach ngan bo chi đong luc", "vu sach ngan bo chi đong luc", "su sach nganh co chi đong luc", "su sach ngan bac chi đong luc", "su sach ngan gon chi đong luc", "su sach ngan bao chi đong luc", "su sach ngan ho chi đong luc", "su sach ngan bo cai đong luc"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("thu hoach toan hoc ki đong luc") or ("su sach ngan bo chi đong luc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("thu hoach toan hoc ki đong luc") OR ("su sach ngan bo chi đong luc")).
• Removing quotes may allow a broader search: (( thu hoach toan hoc ki đong luc ) or ( su sach ngan bo chi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (("thu hoach toan hoc ki đong luc") or ("su sach ngan bo chi đong luc"))*.