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