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