Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong toi doi snippets" » "mong doi doi snippets", "mong tai doi snippets", "mong toa doi snippets", "mong tri doi snippets", "mong voi doi snippets", "mong hoi doi 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 toi doi 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 toi doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong toi doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong toi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.