Perhaps you should try some spelling variations:
thien van » thi van
su sach » so sach, vu sach
te sach » toc sach
van cau » van dau, van hau, van chat
cau luc » cau truc, cau phuc
va hang » van hang, va nang, va lang
luc va » duc va, tuc va, loc va
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (te sach)) ky nang x hoi. thien van cau luc va hang va ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky nang x hoi. thien van cau luc va hang va ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (te sach)) ky nang x hoi. thien van cau luc va hang va ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky nang x hoi. thien van cau luc va hang va ((cua te) OR (cua tu))*.