Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, thi chieu
lang huong » lan huong, lang muong, lang tuong
theo chu » cho chu, chao chu, theo yeu
thang va » hang va, trang va, thanh va
thong va » thong cua, truong va, thong qua
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (theo chieu)) sach - thanh ((thang va) or (thong va)) lang huong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (theo chieu)) sach - thanh ((thang va) OR (thong va)) lang huong dan khan cap.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (theo chieu)) sach - thanh ((thang va) or (thong va)) lang huong dan khan cap*.