Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong de cua snippets" » "cong de cua snippets", "mong do cua snippets", "mong du cua snippets", "mong le cua snippets", "mong te cua snippets", "mong dieu 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 de 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 de cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong de cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong de cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.