Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
trinh vat » trinh van, trinh luat, sinh vat
cong danh » cuong danh, cong dan, cong khanh
trinh va » trinh van, trinh ve, trinh vi
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - hanh ((trinh va) or (trinh vat)) nhung ((cong danh) OR (cong thanh)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((trinh va) OR (trinh vat)) nhung ((cong danh) OR (cong thanh)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((trinh va) or (trinh vat)) nhung ((cong danh) OR (cong thanh)) phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((trinh va) or (trinh vat)) nhung ((cong danh) OR (cong thanh)) phan cau*.