Perhaps you should try some spelling variations:
lieu khoa » lieu hoc
viec khoa » vien khoa, viec khong, viec nhom
dau treo » dau tren, cau treo, dau theo
viec cho » viec nhom, viec cua, viec so
cam dan » cac dan, ca dan, nam dan
xuc cam » phuc cam
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
dan va » doan va, dan ca, ban va
va dau » va dao
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu ((viec cho) or (((viec khoa) or (lieu khoa)))) xuc cam dan va dau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu ((viec cho) OR (((viec khoa) OR (lieu khoa)))) xuc cam dan va dau treo.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu ((viec cho) or (((viec khoa) or (lieu khoa)))) xuc cam dan va dau treo*.