Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trinh cua » trinh luat, trinh quan, trinh luan
muong van » luong van, muong va, truong van
duong van » duong va, luong va, dang van
tinh cua » sinh cua, tinh chat, tranh cua
quan lap » quan luan, quang lam, quan lang

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 cua) or (tinh cua)) truong ((muong van) OR (duong van)) quan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((trinh cua) OR (tinh cua)) truong ((muong van) OR (duong van)) quan lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((trinh cua) or (tinh cua)) truong ((muong van) OR (duong van)) quan lap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((trinh cua) or (tinh cua)) truong ((muong van) OR (duong van)) quan lap*.