Perhaps you should try some spelling variations:
thieu hanh » thien thanh, thien chanh, thieu khang
toc sach » hoc sach, doc sach, thuoc sach
cac thoi » cac toi, cac hop, cac tro
hieu va » lieu va, hieu qua
cac toc » cac toi, cac nuoc
xa hanh » xa thanh, xa khanh, va hanh
hanh ca » hanh cac, hanh cat, hanh cua
ca hoi » cau hoi, cua hoi, xa hoi
vai va » mai va, hai va, lai va
dai va » mai va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach thieu hanh ca hoi. hieu va ((cac toc) or (cac thoi)) xa hanh ((vai va) or (dai va)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thieu hanh ca hoi. hieu va ((cac toc) OR (cac thoi)) xa hanh ((vai va) OR (dai va)) triet.
• Adding a wildcard symbol may retrieve word variants: toc sach thieu hanh ca hoi. hieu va ((cac toc) or (cac thoi)) xa hanh ((vai va) or (dai va)) triet*.