Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang cau lee snippets" » "hang dau lee snippets", "hang ca lee snippets", "nhung cau lee snippets", "hang chul lee 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: (((("hang cau lee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang cau lee snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang cau lee snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang cau lee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.