Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
nang tai » hang tai, tang tai, nang cao
sang tai » hang tai, sang tao, tang tai
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
cam loc » cam lo
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
loc va » hoc va, luc va

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 y ((nang tai) or (sang tai)) roi. hieu ve cam loc va thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang tai) OR (sang tai)) roi. hieu ve cam loc va thanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang tai) or (sang tai)) roi. hieu ve cam loc va thanh tai cua tre*.