Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach thu gom snippets" » "sach thue gom snippets", "sach thieu gom snippets", "sach tham gom snippets", "sach thuat gom 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: (((("sach thu gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach thu gom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach thu gom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach thu gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.