Perhaps you should try some spelling variations:
truong dinh » truong kinh, truong minh, truong thanh
hanh trinh » canh tranh, hanh chinh
hien xanh » hien hanh, hien nhanh, chieu xanh
luat cong » thuat cong, luat chung, cua cong
trong dan » trong dang, trong san, trong tan
tuan cau » toan cau, quan cau, tuan cu

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 - hanh trinh luat cong ((trong dan) or (truong dinh)) ((tuan cau) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh luat cong ((trong dan) OR (truong dinh)) ((tuan cau) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh luat cong ((trong dan) or (truong dinh)) ((tuan cau) or (van ban))*.