Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc hong won snippets" » "hoc huong won snippets", "hoc khong won snippets", "hoc cong won snippets", "hoc hong son snippets", "hoc jong won snippets", "hoc hong kong 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 hong won 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 hong won snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc hong won snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc hong won snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.