Perhaps you should try some spelling variations:
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
dong cua » dung cua, cong cua, huong cua
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
doi cua » hoi cua
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac

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 y nang xa hoi. hieu ve cac nuoc va hanh ((dong cua) or (((doi cua) or (dai cua)))) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang xa hoi. hieu ve cac nuoc va hanh ((dong cua) OR (((doi cua) OR (dai cua)))) tre.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang xa hoi. hieu ve cac nuoc va hanh ((dong cua) or (((doi cua) or (dai cua)))) tre*.