Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van gian soc snippets" » "van giang soc snippets", "dan gian soc snippets", "van giao soc snippets", "van gian doc snippets", "van giang son snippets", "van gian song 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: (((("van gian soc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van gian soc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van gian soc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van gian soc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.