Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong tinh » phuong trinh, phuong binh, khuong tinh
khanh luan » khanh thuan, doanh luan, hang luan
kieu tinh » lieu tinh, trieu tinh, diep tinh
chau tinh » cuu tinh, ha tinh, cua tinh
van nhung » van nhuong, va nhung, van hung
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((kieu tinh) or (chau tinh)) - khanh luan van nhung phuong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((kieu tinh) OR (chau tinh)) - khanh luan van nhung phuong tinh toan tap.
• Adding a wildcard symbol may retrieve word variants: theo ((kieu tinh) or (chau tinh)) - khanh luan van nhung phuong tinh toan tap*.