Perhaps you should try some spelling variations:
nhung luong » hung luong, nhung huong, nhung tuong
hanh tranh » canh tranh, hanh trinh, hanh trang
luong tai » dung tai, luong va
quang cao » quang nam
chi xanh » chi anh, chi danh, chi hanh
tranh va » tranh van, trang va, trinh va
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 tranh va nhung luong tai ((quang cao) OR (nang cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - hanh tranh va nhung luong tai ((quang cao) OR (nang cao))".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh tranh va nhung luong tai ((quang cao) OR (nang cao))*.