Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
hieu viec » nhieu viec, hieu ve, sieu viet
cau treo » cau theo, cau tren, cau triet
van hanh » ban hanh, van anh, van ban
viec cac » vien cac, viec cua, viec lam
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
vai cau » va cau, van cau, vai cac
cac ho » cac hop, cac hoc, cac co

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)) nang xa hoi. hieu viec cac ho ((van hanh) OR (van thanh)) vai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) nang xa hoi. hieu viec cac ho ((van hanh) OR (van thanh)) vai cau treo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sach ty)) nang xa hoi. hieu viec cac ho ((van hanh) OR (van thanh)) vai cau treo*".