Perhaps you should try some spelling variations:
dung cong » dung trong
cac chat » cao chat, cac thuat, cac nha
cac thu » cach thuc, cac thoi
cac che » cac he, cac chien, sach che
ta dung » tac dung, tan dung, tao dung
ban le » ban ve
le mo » ke mo, le co, de mo
mo ta » mo tai, mo va, co ta
tuyen » truyen, quyen

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

• Performing a fuzzy search may retrieve terms with similar spellings: tuyen tap ((((cac thu) or (cac hop))) or (((cac che) OR (cac chat)))) đe co ban le mo ta dung cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tap ((((cac thu) OR (cac hop))) OR (((cac che) OR (cac chat)))) đe co ban le mo ta dung cong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tuyen tap ((((cac thu) or (cac hop))) or (((cac che) OR (cac chat)))) đe co ban le mo ta dung cong".
• Adding a wildcard symbol may retrieve word variants: tuyen tap ((((cac thu) or (cac hop))) or (((cac che) OR (cac chat)))) đe co ban le mo ta dung cong*.