Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
chinh cua » chinh ca, chinh sua, hinh cua
hang cong » dang cong, hang nong, bang cong
chi xanh » chi anh, chi danh, chi hanh
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban
doi chi » doi khi

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 xanh - hanh chinh cua ((nhung cong) or (hang cong)) tac ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh chinh cua ((nhung cong) OR (hang cong)) tac ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh chinh cua ((nhung cong) or (hang cong)) tac ((toan tai) or (toan tap))*.