Perhaps you should try some spelling variations:
luoc gia » quoc gia, luong gia, nuoc giai
thanh vi » hanh vi, thanh va, thanh ve
cau treo » cau theo, cau triet, cau trieu
cau tren » cu tren, dau tren, ca tren
nang xa » nang x, lang xa, nang ma
luc gia » duc gia, quoc gia, duc giao
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu va ky nang xa hoi. lieu va cam ((luc gia) OR (luoc gia)) thanh vi ((cau treo) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu va ky nang xa hoi. lieu va cam ((luc gia) OR (luoc gia)) thanh vi ((cau treo) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu va ky nang xa hoi. lieu va cam ((luc gia) OR (luoc gia)) thanh vi ((cau treo) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: tu va ky nang xa hoi. lieu va cam ((luc gia) OR (luoc gia)) thanh vi ((cau treo) or (cau tren))*.