Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tho van mong snippets" » "tho van dong snippets", "tho van cong snippets", "tho va mong snippets", "thao van mong snippets", "ho van mong snippets", "tho dan mong 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: (((("tho van mong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tho van mong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tho van mong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tho van mong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.