Perhaps you should try some spelling variations:
thieu nang » thien nang, thieu khang, thieu quang
cach thuc » anh thuc, cac thu
thanh tai » thanh hai, thanh toan, doanh tai
thuc dan » thuc hanh, hoc dan, thuc vat
hanh tai » hang tai, han tai, hinh tai
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cach » va cac
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach thieu nang xa hoi. hieu va cach thuc dan ((hanh tai) OR (thanh tai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thieu nang xa hoi. hieu va cach thuc dan ((hanh tai) OR (thanh tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach thieu nang xa hoi. hieu va cach thuc dan ((hanh tai) OR (thanh tai)) cua tre*.