Perhaps you should try some spelling variations:
luan nhung » luan chung, luan hung, quan nhung
nhung cong » dung cong, thong cong, hang cong
chau tinh » cuu tinh, ha tinh, cac tinh
nhan dang » nhan dan, phan dang, tran dang
dang luan » dung luan, tang luan, hang luan
cua tinh » cua sinh, va tinh, ha tinh
cong san » cong tac
than tap » han tap, phan tap, than cap
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chau tinh) or (cua tinh)) - nhan dang luan nhung cong san ((than tap) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chau tinh) OR (cua tinh)) - nhan dang luan nhung cong san ((than tap) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chau tinh) or (cua tinh)) - nhan dang luan nhung cong san ((than tap) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho ((chau tinh) or (cua tinh)) - nhan dang luan nhung cong san ((than tap) OR (toan tap))*.