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