Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu canh cua snippets" » "thu canh cua snippets", "phu can cua snippets", "thuy canh cua snippets", "phu manh cua snippets", "phu hanh cua snippets", "phu anh cua 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: (((("phu canh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu canh cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu canh cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu canh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.