Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cac » thien cac, vien cac, hieu cac
thanh di » thanh doi, thanh de, thanh do
cau tre » cau tren, cau treo, cau tra
tu van » tu va
ky dan » ky dang, ky danh, ke dan
dan xa » dan xac, dan xay, dan ca
xuc va » tuc va, luc va, xac va
di cau » da cau, diem cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu van ky dan xa hoi. hieu hien cac ((xuc va) or (duc va)) thanh di cau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu van ky dan xa hoi. hieu hien cac ((xuc va) OR (duc va)) thanh di cau tre.
• Adding a wildcard symbol may retrieve word variants: tu van ky dan xa hoi. hieu hien cac ((xuc va) or (duc va)) thanh di cau tre*.