Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
ky hanh » ly hanh, ky anh, ky danh
hanh xa » hanh va, hanh ma, hanh xu
hieu ve » hieu va, hieu van
duc tre » duoc tren, duc tien
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
luc va » tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky hanh xa hoi. hieu ve cam ((luc va) or (duc va)) ((thanh tai) or (von tai)) duc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky hanh xa hoi. hieu ve cam ((luc va) OR (duc va)) ((thanh tai) OR (von tai)) duc tre.
• Adding a wildcard symbol may retrieve word variants: su sac ky hanh xa hoi. hieu ve cam ((luc va) or (duc va)) ((thanh tai) or (von tai)) duc tre*.