Perhaps you should try some spelling variations:
thien cau » hien cau, khien cau, thien cac
hien cam » hien cac, hien cau, hien giam
hanh vai » hanh vi, hanh va, hanh tai
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang xa hoi. hieu ((hien cam) or (thien cau)) ly va hanh vai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang xa hoi. hieu ((hien cam) OR (thien cau)) ly va hanh vai cua su.
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang xa hoi. hieu ((hien cam) or (thien cau)) ly va hanh vai cua su*.