Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cong vang » cong lang, cong quang, cong ngang
trinh va » trinh van, trinh vat, trinh ve
va thong » va thuong, va phuong, he thong
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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 xanh - hanh trinh va thong cong vang ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh va thong cong vang ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh va thong cong vang ((toan cau) OR (toan cao))*.