Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoang tu ho snippets" » "hoang thu ho snippets", "hoang vu ho snippets", "hoang tuan ho snippets", "hoang tu hoc snippets", "hoang tu hoa snippets", "hoang tu hon 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 tu 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: (((("hoang tu ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoang tu ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang tu ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.