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