Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap nen doi snippets" » "phap gen doi snippets", "phap nang doi snippets", "phap lenh doi snippets", "phap neu doi snippets", "phap bien doi snippets", "phap kien doi 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: (((("phap nen 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: (((("phap nen doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap nen doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap nen doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.