Perhaps you should try some spelling variations:
thien van » thi van
manh nhan » danh nhan, anh nhan, minh nhan
toc sach » thuoc sach, nuoc sach, toc san
hoc sach » hoc sinh, hoc cac, hoc anh
doc sach » nuoc sach, dac sac, bo sach
duc manh » suc manh, duc anh, duc minh
nhan tai » hang tai, van tai, toan tai
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
cau duc » cao duc, cau luc, chu duc
cuc tu » cuc du, luc tu, duc tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((toc sach) OR (hoc sach))) or (doc sach)) ky nang xa hoi. thien van cau duc manh nhan tai cuc tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((toc sach) OR (hoc sach))) OR (doc sach)) ky nang xa hoi. thien van cau duc manh nhan tai cuc tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((toc sach) OR (hoc sach))) or (doc sach)) ky nang xa hoi. thien van cau duc manh nhan tai cuc tu".
• Adding a wildcard symbol may retrieve word variants: ((((toc sach) OR (hoc sach))) or (doc sach)) ky nang xa hoi. thien van cau duc manh nhan tai cuc tu*.