Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
cao thuong » cao truong, ca thuong, cho thuong
thuong can » thuong han, thuong lan, thuong con
hien xanh » hien hanh, chieu xanh, hien khanh
cong cao » cong cau, cong cac, cong co
van than » van thanh, van thang, van tuan
than cau » toan cau, phan cau, than cap
can van » cac van, can ban, tan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) OR (hien nhanh)) - thanh cong cao thuong can van than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - thanh cong cao thuong can van than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien nhanh)) - thanh cong cao thuong can van than cau*.