Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc hoc du snippets" » "phuc hoi du snippets", "phuc hoa du snippets", "phuc hon du snippets", "phuc hoc duc snippets", "phuc hoc dau snippets", "phuc hoc dua 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: (((("phuc hoc du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuc hoc du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc hoc du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc hoc du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.