Perhaps you should try some spelling variations:
phuong thuc » thuong thuc
vang phuong » bang phuong, van phuong, hoang phuong
hoc thieu » toc thieu, hoc hien
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
cong vang » cong lang, cong quang, cong ngang
ho chieu » theo chieu, mot chieu, doi chieu

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)) xanh - sach dung luan dang cong vang phuong thuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - sach dung luan dang cong vang phuong thuc*.