Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"song van cu snippets" » "hoang van cu snippets", "trong van cu snippets", "duong van cu snippets", "song van cau snippets", "song van chu snippets", "song van cua 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: (((("song van cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("song van cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( song van cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("song van cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.