Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc vu toi snippets" » "phuc vu tuoi snippets", "phuc vu thi snippets", "phuc vu tai snippets", "thuc vu toi snippets", "phu vu toi 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 vu toi 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 vu toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc vu toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc vu toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.