Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
hanh truong » hanh trong, anh truong, manh truong
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
truong cao » truong dai
phuong dan » phuong danh, phuong doan, huong dan
cao nhung » cho nhung, cam nhung, cao chung
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu tinh) or (((chieu sach) OR (chieu sang)))) - hanh truong cao nhung phuong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (((chieu sach) OR (chieu sang)))) - hanh truong cao nhung phuong dan toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu tinh) or (((chieu sach) OR (chieu sang)))) - hanh truong cao nhung phuong dan toan cau*".