Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day van noi snippets" » "day va noi snippets", "dao van noi snippets", "duy van noi snippets", "day van loi snippets", "day van ngoc 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: (((("day van noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("day van noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day van noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day van noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.