Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cam » viec lam, viec cua, viec va
cau treo » cau theo, cau tren, cau triet
tinh dai » trinh dai, tinh da, tinh hai
dang xay » dang van, van xay
va tinh » may tinh
cam duc » cam xuc, cao duc, pham duc
sach ky » sac ky, sach y, sach kem
xay hoi » xa hoi, tay hoi, cay phoi
sach ty » sach y, sach tu, sach thu
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) OR (sach ty)) dang xay hoi. hieu viec cam duc va tinh dai ((cau treo) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) dang xay hoi. hieu viec cam duc va tinh dai ((cau treo) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach ty)) dang xay hoi. hieu viec cam duc va tinh dai ((cau treo) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach ty)) dang xay hoi. hieu viec cam duc va tinh dai ((cau treo) or (cua te))*.