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