Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hien xanh » hien hanh, hien nhanh, chieu xanh
cua thong » cua thuong, cua khong, cua tong
thong bai » nhung bai, thong xay, thong va
thong tai » truong tai, thong tin, hang tai
hanh han » hanh nhan, hanh phan, hanh san
toan cau » toan cao, toan ban, toan tap
han cua » hang cua, nhan cua, than cua

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 (thien thanh)) - hanh han cua thong ((thong bai) or (thong tai)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (thien thanh)) - hanh han cua thong ((thong bai) OR (thong tai)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (thien thanh)) - hanh han cua thong ((thong bai) or (thong tai)) toan cau*.