Perhaps you should try some spelling variations:
dung cua » dung luan, dung cho
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
ve dat » de dat, va dat, ve dao
ve bao » te bao, va bao
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: su sach y nang xa hoi. hieu ((ve dat) or (ve bao)) nuoc va hanh ((di cua) or (dung cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((ve dat) OR (ve bao)) nuoc va hanh ((di cua) OR (dung cua)) te.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((ve dat) or (ve bao)) nuoc va hanh ((di cua) or (dung cua)) te*.