Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cua van cuc snippets" » "cua van code snippets", "cua ban cuc snippets", "cua dan cuc snippets", "cua vat cuc snippets", "cua van duc snippets", "cua van luc snippets", "cua van cu 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: (((("cua van cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua van cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cua van cuc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua van cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.