Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
duc manh » suc manh, duc anh, duc minh
lang van » dang van, tang van, hoang van
dong ky » duong ky, hong ky, dong y
ve chat » va chat, van chat
ve cham » va cham, vu cham, ve chim
lang xa » lang ha, dang xay
co viet » so viet, o viet, hoc viet
vi co » vi con, voi co, vi mo

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dong ky ((lang xa) or (lang van)) hoi. hieu ((ve cham) or (ve chat)) duc manh hanh vi co viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dong ky ((lang xa) OR (lang van)) hoi. hieu ((ve cham) OR (ve chat)) duc manh hanh vi co viet.
• Adding a wildcard symbol may retrieve word variants: tu dong ky ((lang xa) or (lang van)) hoi. hieu ((ve cham) or (ve chat)) duc manh hanh vi co viet*.