Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hong oanh le snippets" » "hong hanh le snippets", "hong anh le snippets", "dong doanh le snippets", "hong manh le snippets", "hong doanh ly 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: (((("hong oanh le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hong oanh le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong oanh le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong oanh le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.