Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cham hoi vat snippets" » "cham voi vat snippets", "cham h'roi vat snippets", "pham hoai vat snippets", "cham hoi va snippets", "cham hoc vat snippets", "cham hoi dat 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: (((("cham hoi vat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cham hoi vat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cham hoi vat snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham hoi vat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.