Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chon tu cao snippets" » "con tu cao snippets", "cho tu cao snippets", "choi tu cao snippets", "chon cu cao snippets", "chon tu cac snippets", "chon vu cao snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("chon tu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chon tu cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chon tu cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chon tu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.