Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc nhat ca snippets" » "hoc phat ca snippets", "hoc chat ca snippets", "hoc hat ca snippets", "hoc nhat cua snippets", "hoc nhap ca 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 nhat ca 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 nhat ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc nhat ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc nhat ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.