Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi hop dong snippets" » "phi hoat dong snippets", "phi ha dong snippets", "phi huy dong snippets", "phu hop dong snippets", "phap hop dong snippets", "phoi hoc dong 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 hop dong 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 hop dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi hop dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hop dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.