Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chieu tu cho snippets" » "chieu tro cho snippets", "lieu tu cho snippets", "chu tu cho snippets", "chieu tu choi snippets", "chieu tu chon snippets", "chieu cu cho 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: (((("chieu tu cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chieu tu cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chieu tu cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chieu tu cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.