Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so giao voi snippets" » "so gian voi snippets", "so giap voi snippets", "so giao li snippets", "so giai voi snippets", "hoc giao voi 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: (((("so giao 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: (((("so giao voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so giao voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so giao voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.