Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tuan bang » tuan dang, tuan hoang, thuat bang
dung cua » dung luan
cong van » cong vang, cong san, song van
tuan ban » toan ban, luan ban, quang 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 - hanh ((dung cua) OR (dung cho)) nhung cong van ((tuan ban) or (tuan bang))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((dung cua) OR (dung cho)) nhung cong van ((tuan ban) OR (tuan bang)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((dung cua) OR (dung cho)) nhung cong van ((tuan ban) or (tuan bang))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((dung cua) OR (dung cho)) nhung cong van ((tuan ban) or (tuan bang))*.