Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hung van cu snippets" » "phung van cu snippets", "nhung van cu snippets", "dung van cu snippets", "hung van cau snippets", "hung van chu snippets", "hung 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: (((("hung 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: (((("hung van cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hung van cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hung van cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.