Perhaps you should try some spelling variations:
cau treo » cau theo, cau triet, cau trieu
cau tren » dau tren, ca tren, cau tieng
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
nam xua » nam cua, nam mua, nam qua
xua may » xuan mai, chua may, xuat mam
tinh va » tich va, trinh van, trinh vat
cu tren » tu tren, dua tren
va nam » van nam, ha nam, va nay

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 ky nang xa hoi. lieu va nam xua may tinh va ((((cau treo) OR (cau tren))) or (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. lieu va nam xua may tinh va ((((cau treo) OR (cau tren))) OR (cu tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. lieu va nam xua may tinh va ((((cau treo) OR (cau tren))) or (cu tren))".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. lieu va nam xua may tinh va ((((cau treo) OR (cau tren))) or (cu tren))*.