Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
chat thuc » thuat thuc, nhan thuc, chat thai
hieu cao » chieu cao, hieu cac, hieu ca
ky lang » ky dang, ky tang, tay lang
thuc va » thuc vat, thuc dan, thuc day
cua tre » cuu tre, cua triet, dua tren
va dat » va dao, va dau, va dap
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ((ky lang) or (ky nang)) xa hoi. hieu cao chat thuc va dat dai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((ky lang) OR (ky nang)) xa hoi. hieu cao chat thuc va dat dai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thuat sach ((ky lang) or (ky nang)) xa hoi. hieu cao chat thuc va dat dai ((cua tre) or (cua te))*.