Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu chon cac snippets" » "chu chan cac snippets", "chuan chon cac snippets", "chu khong cac snippets", "chu cho cac snippets", "chu thong cac snippets", "chu hoc cac 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: (((("chu chon cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu chon cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu chon cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu chon cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.