Perhaps you should try some spelling variations:
phuong dan » phuong danh, phuong doan, huong dan
hoc thieu » toc thieu, hoc hien
huong cua » dung cua
ho chieu » theo chieu, doi chieu, mot chieu
cua bang » chua bang, cua ban, cua dang
dan toan » van toan, dan than, manh toan
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: ((ho chieu) or (hoc thieu)) tinh - anh huong cua bang phuong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - anh huong cua bang phuong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - anh huong cua bang phuong dan toan tap*.