Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau mong do snippets" » "hau bong do snippets", "hau mon do snippets", "lau mong do snippets", "hau mong doi snippets", "hau dong do snippets", "hau mong du 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: (((("hau mong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hau mong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau mong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau mong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.