Perhaps you should try some spelling variations:
viec cac » vien cac, viec cua, viec va
viec lam » viec va
tan hanh » tan thanh, tang hanh, toan hanh
toc cac » hoc cac, tuc cac, ton cac
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
ha hoi » hoa hoi, ha noi, xa hoi
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc cac ky dang ha hoi. hieu ((viec cac) OR (viec lam)) duc tan hanh di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc cac ky dang ha hoi. hieu ((viec cac) OR (viec lam)) duc tan hanh di cua tre".
• Adding a wildcard symbol may retrieve word variants: toc cac ky dang ha hoi. hieu ((viec cac) OR (viec lam)) duc tan hanh di cua tre*.