Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi hoang de snippets" » "thi hoang de snippets", "pham hoang de snippets", "thai hoang de snippets", "phi hoang _ 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 hoang de 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 hoang de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi hoang de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hoang de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.