Perhaps you should try some spelling variations:
truong trong » truong trung, thuong trong, trung trong
hanh trinh » canh tranh, hanh chinh
cua truong » cua trung, xuan truong, cac truong
tieu xanh » chieu xanh, dieu hanh, tien anh
tieu danh » dieu danh, tiep danh, thien danh
trinh cua » tinh cua, trinh luat, trinh quan
trong bai » trong ban, thong bai, trong hai
bai toan » bai tap
toan cau » 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: theo ((tieu xanh) or (tieu danh)) - hanh trinh cua truong trong bai toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (tieu danh)) - hanh trinh cua truong trong bai toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (tieu danh)) - hanh trinh cua truong trong bai toan cau*.