Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
chua tre » chua tri, cua tre, chua trieu
toc sach » hoc sach, doc sach, thuoc sach
thanh va » thanh van, hanh va, thanh ha
cam tuc » cam xuc, cam tu, nam thuc
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
tuc va » thuc va, truc va, tuc xa
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam

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 (toc sach)) ky sang ma hoi. hieu ve cam tuc va ((thanh va) or (thanh phan)) chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (toc sach)) ky sang ma hoi. hieu ve cam tuc va ((thanh va) OR (thanh phan)) chua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (toc sach)) ky sang ma hoi. hieu ve cam tuc va ((thanh va) or (thanh phan)) chua tre*.