Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vi tri hoat snippets" » "vi tri hoan snippets", "vi toi hoat snippets", "vi trien hoat snippets", "ve tri hoat snippets", "vi thi hoat 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: (((("vi tri hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vi tri hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vi tri hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vi tri hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.