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