Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
thong den » thong dien, thong dan, thong dieu
tuong den » huong den, tuong dan, truong dien
nhanh bac » nhanh ha, nhanh va
cua tong » cua cong, cua dong, cua nong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chieu sang)) - hanh tranh cua tong ((thong den) or (tuong den)) nhanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu sang)) - hanh tranh cua tong ((thong den) OR (tuong den)) nhanh bac.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu sang)) - hanh tranh cua tong ((thong den) or (tuong den)) nhanh bac*.