Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"theo da voi snippets" » "theo dau voi snippets", "tho da voi snippets", "theo doi voi snippets", "theo dao voi snippets", "theo dua voi snippets", "theo ba 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: (((("theo da 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: (((("theo da voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( theo da voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("theo da voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.