Perhaps you should try some spelling variations:
thuoc cong » truoc cong, thuoc trong, thu cong
cong cong » cong dong, trong cong, dung cong
cac chu » cac thu, cac khu, ca chu
cac che » cac he, cac chien, cac chat
y thuoc » ly thuoc, ty thuoc, 3 thuoc
co ben » co benh, co ban, do ben
vat y » vat ly, vat _
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 chu) or (cac che)) đe co ben vat y thuoc cong cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuyen tap ((cac chu) OR (cac che)) đe co ben vat y thuoc cong cong.
• Adding a wildcard symbol may retrieve word variants: tuyen tap ((cac chu) or (cac che)) đe co ben vat y thuoc cong cong*.