Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi tien can snippets" » "thi tieng can snippets", "phan tien can snippets", "thi thien can snippets", "phi tiep can snippets", "phi tiem can snippets", "phi tien van 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 tien can 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 tien can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi tien can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi tien can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.