Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc linh chi snippets" » "doc tinh chi snippets", "doc trinh chi snippets", "ngoc linh chi snippets", "doc dinh chi snippets", "doc minh chi snippets", "doc linh chinh 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: (((("doc linh chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc linh chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc linh chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc linh chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.