Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc ham cua snippets" » "hoc kham cua snippets", "hoc nham cua snippets", "hoc lam cua snippets", "hoc pham cua snippets", "hoc hai cua snippets", "hoc nam 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 ham 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 ham cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc ham cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc ham cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.