Perhaps you should try some spelling variations:
van khanh » van thanh, van hanh, van phan
hieu viec » nhieu viec, hieu ve, sieu viet
cac truc » cau truc, cac tru, cac trung
viec cac » vien cac, viec cua, viec lam
van anh » van thanh, tuan anh, van minh
su sach » so sach, vu sach
v nang » va nang, vu nang, van nang
sach v » sach va, sach y, sach 2
doi su » oi su, don su, voi su
x hoi » xa hoi, o hoi, x ho
di su » ki su, da su, de su

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 v nang x hoi. hieu viec cac truc ((van khanh) OR (van anh)) ((di su) or (doi su)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang x hoi. hieu viec cac truc ((van khanh) OR (van anh)) ((di su) OR (doi su)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach v nang x hoi. hieu viec cac truc ((van khanh) OR (van anh)) ((di su) or (doi su)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach v nang x hoi. hieu viec cac truc ((van khanh) OR (van anh)) ((di su) or (doi su)) triet*.