Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
so sang » so sanh, so dang, so lang
sang ky » sang kyo, dang ky, tang ky
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao suc » cao su, cao duc
co suc » co su, cong suc
va cua » va chua, via cua, ca cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sang ky nang xa hoi. hieu va ((co suc) OR (cao suc)) gia thanh va cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sang ky nang xa hoi. hieu va ((co suc) OR (cao suc)) gia thanh va cua te".
• Adding a wildcard symbol may retrieve word variants: so sang ky nang xa hoi. hieu va ((co suc) OR (cao suc)) gia thanh va cua te*.