Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
lang trong » dung trong, dong trong
cong trong » cong thuong, duong trong, cong trinh
hoc thieu » toc thieu, hoc hien
song cong » cong cong, tong cong, song hong
cong manh » cong danh, duong manh, cong thanh

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 - ((lang trong) OR (cong trong)) qua song cong manh ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((lang trong) OR (cong trong)) qua song cong manh ((toan ban) OR (van ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((lang trong) OR (cong trong)) qua song cong manh ((toan ban) or (van ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((lang trong) OR (cong trong)) qua song cong manh ((toan ban) or (van ban))*.