Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tranh chuc » tranh chua, tranh cua, trang phuc
hung thang » hung tran
cang thang » cong thanh, dang thanh
nang cong » nang song, dang cong, bang cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - canh tranh chuc nang cong ((hung thang) or (cang thang)) va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh tranh chuc nang cong ((hung thang) OR (cang thang)) va*.