Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"boc van dau snippets" » "hoc van dau snippets", "oc van dau snippets", "bach van dau snippets", "boc van dao snippets", "boc phan dau snippets", "boc van dau slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("boc van dau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("boc van dau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( boc van dau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("boc van dau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.