Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang tinh do snippets" » "dang dinh do snippets", "dang sinh do snippets", "dang vinh do snippets", "dang trinh do snippets", "dang tinh doi snippets", "dang tinh da 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 tinh do 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 tinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang tinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang tinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.