Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi bac moi snippets" » "phia bac moi snippets", "pho bac moi snippets", "thi bach moi snippets", "phi ban moi snippets", "phi cac moi snippets", "phi bat moi 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: (((("phi bac moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi bac moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi bac moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi bac moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.