Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
toc sach » hoc sach, doc sach, thuoc sach
van chat » cao chat
nang xay » dang xay, nganh xay, nang xuan
ve chat » va chat
sach ky » sac ky, sach y, sach ty
thuc va » thuc vat, thuc dan, thuc day
xay hoi » xa hoi, tay hoi, cay phoi
van luu » von luu, van lu, van luc
tuc va » truc va, tuc xa, duc va
tru » truc

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 ky nang xay hoi. hieu ((ve chat) or (van chat)) ((tuc va) OR (thuc va)) thanh van luu tru~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang xay hoi. hieu ((ve chat) OR (van chat)) ((tuc va) OR (thuc va)) thanh van luu tru.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xay hoi. hieu ((ve chat) or (van chat)) ((tuc va) OR (thuc va)) thanh van luu tru".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xay hoi. hieu ((ve chat) or (van chat)) ((tuc va) OR (thuc va)) thanh van luu tru*.