Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chon va hoe snippets" » "chong va hoe snippets", "chon vi hoe snippets", "cho va hoe snippets", "chon van hoe snippets", "chon va hoc snippets", "chon va hoa 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 va hoe 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 va hoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chon va hoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chon va hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.