Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuong duy so snippets" » "luong duy so snippets", "phuong duy so snippets", "vuong dung so snippets", "vuong duy son snippets", "vuong duc so snippets", "vuong duy ro 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 duy so 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 duy so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuong duy so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuong duy so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.