Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
hanh hang » thanh hang, hang hang, hanh han
tong cong » trong cong, cong cong, dung cong
thuat cam » thuat dam, thuat chan, thuat xay
chu tinh » chua tinh, cuu tinh, chu tich
cong san » cong tac
chat ban » nhat ban, chat ran, cua ban
hang ca » hang va, nang cao, hang tai
ca tong » ca trong, cap tong, cua tong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chu tinh) or (chau tinh)) - hanh hang ca tong cong san ((chat ban) or (thuat cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chu tinh) OR (chau tinh)) - hanh hang ca tong cong san ((chat ban) OR (thuat cam)).
• Adding a wildcard symbol may retrieve word variants: ho ((chu tinh) or (chau tinh)) - hanh hang ca tong cong san ((chat ban) or (thuat cam))*.