Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
buu tre » cuu tre
va cam » va cham, va cac, va cao

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 ty ((nang ma) OR (nang x)) hoi. hieu va cam xuc van hanh tai buu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((nang ma) OR (nang x)) hoi. hieu va cam xuc van hanh tai buu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang ma) OR (nang x)) hoi. hieu va cam xuc van hanh tai buu tre*.