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