Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuong ben di snippets" » "huong ben di snippets", "vuong den di snippets", "cuong bien di snippets", "vuong ben dai snippets", "vuong bien di 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: (((("vuong ben di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vuong ben di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuong ben di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuong ben di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.