Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
hang via » hang va, hang vi, hang giao
tu sach » thu sach, su sach, te sach
cao hoa » cao hoat, cao khoa, cau hoa
viec va » vien va, viec cua, viec lam
va hang » van hang, va nang, va lang
via cua » gia cua, gian cua, giau cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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 y nang cao hoa. hieu ((viec va) or (vien cac)) tu va hang via cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang cao hoa. hieu ((viec va) OR (vien cac)) tu va hang via cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang cao hoa. hieu ((viec va) or (vien cac)) tu va hang via cua tre*.