Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
tham nhung » thi nhung
cam nhung » cam hung, nam nhung, cam nang
ban nhanh » ban hanh, ban thanh, ban nhan
nhanh cay » nhanh ha, nhanh bac, nhanh va
ho chieu » theo chieu, hoc thieu, doi chieu
cong ban » cong bang, cong san, cong tan

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 sach - thanh trung ((cam nhung) OR (tham nhung)) cong ban nhanh cay~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung ((cam nhung) OR (tham nhung)) cong ban nhanh cay".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung ((cam nhung) OR (tham nhung)) cong ban nhanh cay*.