Perhaps you should try some spelling variations:
trien viet » tieng viet
viet cac » vien cac, viet ca, viet bac
cam doan » chan doan, cac doanh, cam hoang
doan thi » dan thi, doanh tai, hoang thi
su sach » vu sach
so sach » so sanh, bo sach, co sach
ty nang » ky nang, ty xang, ty hang
cac xuc » cam xuc, cac nuoc, chat xuc
xuc cam » phuc cam
thi cuu » thi cuc, thi huu, thi cu
cuu tre » cua tre, cau tren, cau treo
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) OR (so sach)) ty nang x hoi. trien viet cac xuc cam doan thi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ty nang x hoi. trien viet cac xuc cam doan thi cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ty nang x hoi. trien viet cac xuc cam doan thi cuu tre*.