Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chap lao cua snippets" » "chai lao cua snippets", "cap lam cua snippets", "chap dat cua snippets", "chap lai cua snippets", "chap lam cua snippets", "chap bao 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: (((("chap lao 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: (((("chap lao cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chap lao cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chap lao cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.