Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
nhung cong » dung cong, thong cong, hang cong
quan hoang » luan hoan
hoc thieu » toc thieu, hoc hien
tranh cua » manh cua
doanh cua » doanh luan
cong quan » cuong quan, cong quang, tong quan
hoang cao » hoang bao, hoang hao, hoang thao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - canh ((tranh cua) or (doanh cua)) nhung cong quan hoang cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - canh ((tranh cua) OR (doanh cua)) nhung cong quan hoang cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - canh ((tranh cua) or (doanh cua)) nhung cong quan hoang cao*.