Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, cong tan
hanh tang » hanh trang, hanh mang, hanh tung
cua thong » cua thuong, cua khong, cua tong
thuat cao » thuat co, thuat bao, thuat cam
ho chieu » theo chieu, hoc thieu, doi chieu
anh tang » anh bang, anh dang, anh nang
than cap » khan cap, thanh lap, thanh cac

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 - ((hanh tang) or (anh tang)) cua thong cong thanh ((thuat cao) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh tang) OR (anh tang)) cua thong cong thanh ((thuat cao) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh tang) or (anh tang)) cua thong cong thanh ((thuat cao) or (than cap))*.