Perhaps you should try some spelling variations:
thien van » thi van
hoa xuat » hoa xa, hoa chat
ban hanh » ban hang
dac ban » cac ban, dac san, duc ban
hoa cua » hoa chat
tu sach » thu sach, su sach, te sach
hac dac » cac dac, ha dac, nhac dan
van hac » van hoc, van ha, van hai
y nang » ky nang, ly nang, v nang
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: ((tu sach) or (thu hoach)) y nang x hoi. thien van hac dac ban hanh ((hoa cua) or (hoa xuat)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) y nang x hoi. thien van hac dac ban hanh ((hoa cua) OR (hoa xuat)) tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) y nang x hoi. thien van hac dac ban hanh ((hoa cua) or (hoa xuat)) tre*.