Perhaps you should try some spelling variations:
duong tuong » duong truong, duong trong, duong vuong
phan thanh » pham thanh, ban thanh, van thanh
chieu sang » chieu sach, chieu xanh, hieu lang
tuong tinh » truong tinh, thuong tinh, trong tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
thanh van » thanh san, thanh toan, thanh phan
van duong » van dong, van dung, van phong
tinh van » trinh van, dinh van, tinh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu sang) or (hieu manh)) - phan thanh van duong tuong tinh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu sang) OR (hieu manh)) - phan thanh van duong tuong tinh van ban.
• Adding a wildcard symbol may retrieve word variants: doc ((chieu sang) or (hieu manh)) - phan thanh van duong tuong tinh van ban*.