Perhaps you should try some spelling variations:
lieu viet » sieu viet, lieu vien, tieu viet
bach tuoc » sach duoc, sach nuoc
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
danh doi » danh di, thanh doi, dung doi
cau tren » cu tren, dau tren, ca tren
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
doi cau » doi dau, di cau, doi ca
su cao » cu cao, vu cao, su co

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cao ky nang xa hoi. lieu viet ((bach tuoc) or (cac nuoc)) va danh doi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cao ky nang xa hoi. lieu viet ((bach tuoc) OR (cac nuoc)) va danh doi cau tren.
• Adding a wildcard symbol may retrieve word variants: su cao ky nang xa hoi. lieu viet ((bach tuoc) or (cac nuoc)) va danh doi cau tren*.