Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dang cong » dung cong
cua dang » cua cong, cua ban
cong van » cong vang, cong san, song van
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - hanh tranh cua dang cong van ((((toan tai) or (toan tap))) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - hanh tranh cua dang cong van ((((toan tai) OR (toan tap))) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - hanh tranh cua dang cong van ((((toan tai) or (toan tap))) or (van ban))*.