Perhaps you should try some spelling variations:
vanh dai » van dai, vanh tai, lanh dao
te sach » toc sach
anh dai » anh bai, anh dat, anh tai
xuc ban » duc ban, cuc ban, quoc ban
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
nang co » nang cao, nang doc, nang noi
va cam » va cham, va cac, va cao
nang o » nang ho, nang ro, nang x
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty ((nang o) or (nang co)) hai. hieu va cam xuc ban ((anh dai) OR (vanh dai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang o) OR (nang co)) hai. hieu va cam xuc ban ((anh dai) OR (vanh dai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang o) or (nang co)) hai. hieu va cam xuc ban ((anh dai) OR (vanh dai)) cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang o) or (nang co)) hai. hieu va cam xuc ban ((anh dai) OR (vanh dai)) cua te*.