Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lai tham do snippets" » "lai tam do snippets", "lai thanh do snippets", "lai chau do snippets", "lai thai do snippets", "lai pham do snippets", "lai tham du 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: (((("lai tham do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lai tham do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lai tham do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lai tham do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.