Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tiep van noi snippets" » "tiep can noi snippets", "tiep va noi snippets", "tien van noi snippets", "tiep van loi snippets", "tiep 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: (((("tiep 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: (((("tiep van noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tiep van noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tiep van noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.