Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thanh van » thanh san, thanh toan, thanh nhan
nang tay » nang tai, nang tao, bang tay
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
tay hoi » tay ho, tao hoi, tay thai
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
luu tre » luu tru, cuu tre, luy tre
tuc va » thuc va, truc va, tuc xa

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 ky nang tay hoi. hieu ve chat ((tuc va) or (duc va)) ((thanh van) OR (thanh phan)) luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang tay hoi. hieu ve chat ((tuc va) OR (duc va)) ((thanh van) OR (thanh phan)) luu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang tay hoi. hieu ve chat ((tuc va) or (duc va)) ((thanh van) OR (thanh phan)) luu tre*".