Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tang luan » dung luan
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
tang cua » mang cua, hang cua, thong cua
cong tac » cong ty
tac doan » tap doan, tan doan, thai doan
doan cau » toan cau, doan dau, doan cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - hanh ((tang cua) OR (tang luan)) nhung cong tac doan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu sach - hanh ((tang cua) OR (tang luan)) nhung cong tac doan cau".
• Adding a wildcard symbol may retrieve word variants: theo chu sach - hanh ((tang cua) OR (tang luan)) nhung cong tac doan cau*.