Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi phap doi snippets" » "theo phap doi snippets", "thi hai doi snippets", "thi ha doi snippets", "thi phap boi snippets", "thi pham doi snippets", "thi phap doc 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 phap 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: (((("thi phap doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi phap doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi phap doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.