Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lay van cung snippets" » "lay van cuong snippets", "lay van dung snippets", "lay van hung snippets", "ly van cung snippets", "lai van cung snippets", "may van cung 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: (((("lay van cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lay van cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lay van cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lay van cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.