Perhaps you should try some spelling variations:
thanh tung » thanh cong
chu phuong » cuu phuong, thu phuong, cau phuong
phuong dan » phuong danh, phuong doan, huong dan
doc hieu » hoc thieu, hoc hien
tung cua » trung cua, tuong cua, dung cua
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban
cua chu » sua chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) xanh - thanh tung cua chu phuong dan ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) xanh - thanh tung cua chu phuong dan ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (toc thieu)) xanh - thanh tung cua chu phuong dan ((toan tai) or (toan ban))*.