Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con trang de snippets" » "con trung de snippets", "hong trang de snippets", "chon trong de snippets", "con trang do snippets", "con trang du snippets", "con trang ke 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: (((("con trang de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con trang de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con trang de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con trang de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.