Perhaps you should try some spelling variations:
chiet tach » chieu sach
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
cong thanh » dong thanh, cong trinh, cong tan
hanh dung » thanh dung, anh dung, hanh dong
cho thong » cho thuong, pho thong, cho trong
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chiet tach) or (chieu sang)) - hanh dung cho thong cong thanh ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chiet tach) OR (chieu sang)) - hanh dung cho thong cong thanh ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chiet tach) or (chieu sang)) - hanh dung cho thong cong thanh ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) or (chieu sang)) - hanh dung cho thong cong thanh ((toan cau) OR (toan tap))*.