Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong van chi snippets" » "muong van chi snippets", "song van chi snippets", "tong van chi snippets", "mong van chien snippets", "mong luan chi snippets", "mong van chat 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 van chi 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 van chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong van chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong van chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.