Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
nang cong » nang song, dang cong, bang cong
cong vang » cong lang, cong quang, cong ngang
vang than » sang than, van than, cang thang
tung van » trung van, tang van, dung van
van nang » van quang, van ban, van dong
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((chieu tinh) or (hieu manh))) or (chieu sach)) - thanh tung van nang cong vang than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu tinh) OR (hieu manh))) OR (chieu sach)) - thanh tung van nang cong vang than cao.
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu tinh) or (hieu manh))) or (chieu sach)) - thanh tung van nang cong vang than cao*.