Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
hoc sach » hoc sinh, hoc cac
thuc dan » thuc hanh, hoc dan, thuc vat
cau treo » cau theo, cau tren, cau triet
hoc anh » hoc nganh, hoc nhanh, ngoc anh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
dan dan » dang dan, ban dan, dao dan
dan vai » dan va, dan tai, dan vat
vai cau » va cau, van cau, vai cac
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: ((thuoc sach) or (((hoc sach) or (hoc anh)))) ky lang xa hoi. hieu va am thuc dan dan vai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (((hoc sach) OR (hoc anh)))) ky lang xa hoi. hieu va am thuc dan dan vai cau treo.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (((hoc sach) or (hoc anh)))) ky lang xa hoi. hieu va am thuc dan dan vai cau treo*.