Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong chi cua snippets" » "mong cai cua snippets", "cong chi cua snippets", "dong chi cua snippets", "mong chi cuc snippets", "mong khi cua snippets", "mong cuoi 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: (((("mong chi 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: (((("mong chi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong chi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong chi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.