Perhaps you should try some spelling variations:
hoc kinh » hoc sinh, luoc kinh
vien cac » vien bach, vien dai, vien da
tinh dat » tinh da, dinh dat, tinh dau
kinh ky » minh ky, trinh ky, kinh tay
nang xa » nang x, lang xa, nang ma
va tinh » may tinh
dat cua » dai cua, day cua, mat cua
cua tre » cua te, cuu tre, cua triet
thu va » thuc va, thue va, tu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc kinh ky nang xa hoi. hieu ((((ve cac) or (va cac))) or (vien cac)) thu va tinh dat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc kinh ky nang xa hoi. hieu ((((ve cac) OR (va cac))) OR (vien cac)) thu va tinh dat cua tre.
• Adding a wildcard symbol may retrieve word variants: hoc kinh ky nang xa hoi. hieu ((((ve cac) or (va cac))) or (vien cac)) thu va tinh dat cua tre*.