Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh lap » thanh san, phan lap, thanh van
cua viet » ca viet, hoa viet, cua vat
canh tay » canh tac, thanh tay, anh ta
cham duc » pham duc, cham soc, pham duy
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
duc van » duc va, duc tan, duc manh
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((canh tay) or (sach y)) nang x hoi. hieu ve cham duc van ((thanh lap) OR (thanh hai)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((canh tay) OR (sach y)) nang x hoi. hieu ve cham duc van ((thanh lap) OR (thanh hai)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((canh tay) or (sach y)) nang x hoi. hieu ve cham duc van ((thanh lap) OR (thanh hai)) cua viet".
• Adding a wildcard symbol may retrieve word variants: tu ((canh tay) or (sach y)) nang x hoi. hieu ve cham duc van ((thanh lap) OR (thanh hai)) cua viet*.