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