Perhaps you should try some spelling variations:
thuong trong » thong trong, duong trong, thuoc trong
hanh tranh » canh tranh, hanh trinh, hanh trang
cua thuong » cua truong, cua phuong, ca thuong
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
trong tan » trong quan, trong cac, trong ca
toan tai » toan tap, doanh tai, toan ban
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 hien xanh - hanh tranh cua thuong trong tan ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh tranh cua thuong trong tan ((toan tai) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh cua thuong trong tan ((toan tai) or (toan cao))*.