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