Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trinh van » trinh han, trinh quan, trinh toan
trinh vat » trinh luat, sinh vat, trinh han
long tich » long tinh, luong dich, cong tinh
long lich » luong lich, cong lich, rong lich
bao ban » tao ban, sao ban, bao bau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((trinh van) OR (trinh vat)) thang ((long tich) OR (long lich)) bao ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((trinh van) or (trinh vat)) thang ((long tich) OR (long lich)) bao ban~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((trinh van) or (trinh vat)) thang ((long tich) OR (long lich)) bao ban*.