Perhaps you should try some spelling variations:
ban phuong » bang phuong, ban huong, van phuong
phuong dan » phuong danh, phuong doan, huong dan
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
sinh cua » manh cua, dinh cuu, sinh va
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - nhan sinh cua ban phuong dan ((toan tai) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - nhan sinh cua ban phuong dan ((toan tai) or (toan ban))*.