Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang tran ho snippets" » "dang thanh ho snippets", "quang tran ho snippets", "hoang tran ho snippets", "dang toan ho snippets", "dang tran hong snippets", "dang trang cho 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: (((("dang tran ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang tran ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang tran ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang tran ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.