Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi tinh doi snippets" » "thai tinh doi snippets", "thi trinh doi snippets", "thi thinh doi snippets", "thi trinh doc snippets", "thi trinh do snippets", "thi tinh hoc 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: (((("thi tinh 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: (((("thi tinh doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi tinh doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi tinh doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.