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