Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu sach » chiet tach, chieu sang, chieu xanh
hanh tang » hanh trang, anh tang, hanh mang
hang cong » dang cong, hang nong, bang cong
tang cua » mang cua, hang cua, tang luan
gian nan » gian dan, gian lan, gian van

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 sach) OR (chinh sach)) - hanh tang cua ((thong cong) or (hang cong)) dan gian nan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - hanh tang cua ((thong cong) OR (hang cong)) dan gian nan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chinh sach)) - hanh tang cua ((thong cong) or (hang cong)) dan gian nan".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chinh sach)) - hanh tang cua ((thong cong) or (hang cong)) dan gian nan*.