Perhaps you should try some spelling variations:
tcanh tinh » thanh tinh, nhanh tinh, hanh tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
canh tinh » hanh tinh, manh tinh, canh tranh
dung cong » dung trong
cong dang » cong dong, cong dan, cong dung
hoc lieu » hoc dieu, hoc sieu, hoc tieu
cua dung » cua dang, cua dong, qua dung
dang van » hoang van, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc lieu tinh - ((canh tinh) or (tcanh tinh)) cua dung cong dang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc lieu tinh - ((canh tinh) OR (tcanh tinh)) cua dung cong dang van ban.
• Adding a wildcard symbol may retrieve word variants: hoc lieu tinh - ((canh tinh) or (tcanh tinh)) cua dung cong dang van ban*.