Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
hanh trinh » canh tranh, hanh chinh
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
duong van » duong va, luong va, dang van
thanh tap » thanh lap, thanh tay, thanh tam
thanh tai » thanh hai, thanh toan, doanh tai
trinh va » trinh van, trinh vat, trinh ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (hieu lang)) - hanh trinh va nhung duong van ((thanh tap) OR (thanh tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - hanh trinh va nhung duong van ((thanh tap) OR (thanh tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu lang)) - hanh trinh va nhung duong van ((thanh tap) OR (thanh tai))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - hanh trinh va nhung duong van ((thanh tap) OR (thanh tai))*.