Perhaps you should try some spelling variations:
toc xach » toc sach, tuoc xanh, hoc sach
thuc dan » thuc hanh, hoc dan, thuc vat
tay lang » tay tang, tay quang, tham lang
tai lang » tai cong, thi lan, tai san
vai cuu » vai cua
dan vai » dan va, dan tai, dan vat
cuu tre » cua tre, cau tren, cau treo
thuc va » thuc vat, thuc day
hieu va » lieu va, hieu qua
va am » va lam, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc xach ((tay lang) or (tai lang)) xa hoi. hieu va am ((thuc va) OR (thuc dan)) dan vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc xach ((tay lang) OR (tai lang)) xa hoi. hieu va am ((thuc va) OR (thuc dan)) dan vai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc xach ((tay lang) or (tai lang)) xa hoi. hieu va am ((thuc va) OR (thuc dan)) dan vai cuu tre*".