Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khao cuu cua snippets" » "khao cuu code snippets", "cham cuu cua snippets", "chao chu cua snippets", "kho cua cua snippets", "khao cau cua snippets", "khao cu cua snippets", "khao chu cua 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: (((("khao cuu cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khao cuu cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khao cuu cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao cuu cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.