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