Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh hanh » hanh han, xanh hanh, nhanh thanh
chi sang » chi lang, chieu sang, chi chang
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
doi chi » doi khi
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sang - hanh hanh va nhung cong dan ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sang - hanh hanh va nhung cong dan ((toan cau) OR (toan cao))*.