Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
xuong dan » xuong san, tuong dan, nguong dan
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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 - canh tranh cua nhung ((xuong dan) or (huong dan)) ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh cua nhung ((xuong dan) OR (huong dan)) ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh cua nhung ((xuong dan) or (huong dan)) ((toan tai) or (toan ban))*.