Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc giap voi snippets" » "hoc giao voi snippets", "hoc giai voi snippets", "hoc gia voi snippets", "hoc gian voi snippets", "hoc gia moi snippets", "hoc giap thi 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: (((("hoc giap voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc giap voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc giap voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc giap voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.