Perhaps you should try some spelling variations:
cham quoc » chuan quoc, han quoc, cham soc
bach dan » bach dang, bac dan, bach van
quoc ban » quoc bao, quoc lan, quoc quan
ban anh » ban hanh, ban banh, ban danh
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
anh vi » hanh vi, anh va, anh ve
vi su » va su, ve su, ki su
kien* » bien*, vien*, tien*

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((bach dan) or (cach mang)) nang xa hoi. ((hieu ve) OR (hieu va)) cham quoc ban anh vi su kien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((bach dan) OR (cach mang)) nang xa hoi. ((hieu ve) OR (hieu va)) cham quoc ban anh vi su kien*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((bach dan) or (cach mang)) nang xa hoi. ((hieu ve) OR (hieu va)) cham quoc ban anh vi su kien*".