Perhaps you should try some spelling variations:
thien van » thi van
cau tren » cu tren, dau tren, ca tren
hanh hai » thanh hai, nhanh hai, hang hai
hai cau » hai chau, hai chu, hai hau
xa hanh » xa thanh, xa khanh, va hanh
cam tuc » cam tu, nam thuc, dam thuc
sach ly » sach y, sach lo, sach ty
cao hoi » cau hoi, co hoi, cao hoc
sach tu » sach thu, cach tu, sach ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ly) or (sach tu)) nang cao hoi. thien van ((cam tuc) or (cam xuc)) xa hanh hai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ly) OR (sach tu)) nang cao hoi. thien van ((cam tuc) OR (cam xuc)) xa hanh hai cau tren.
• Adding a wildcard symbol may retrieve word variants: su ((sach ly) or (sach tu)) nang cao hoi. thien van ((cam tuc) or (cam xuc)) xa hanh hai cau tren*.