Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"truc ha dong snippets" » "truc nha dong snippets", "truc hoa dong snippets", "truc va dong snippets", "truc hoat dong snippets", "truc van dong 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: (((("truc ha dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truc ha dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truc ha dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truc ha dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.