Perhaps you should try some spelling variations:
thieu bien » thieu nien, tieu bieu, hien bien
quan anh » quan hanh, quang anh, tuan anh
hoc quan » hoc dan, tac quan, hoc phan
bien bac » mien bac, bien bao, bien cac
lai cua » dai cua, hai cua, lai chau
bac hoc » bai hoc, bac ho
sach ly » sach y, sach lo, sach ty
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
mang xa » lang xa, mang may, dang xay
vi cua » vai cua, di cua

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 ly ((mang xa) or (nang ma)) hoi. thieu bien bac hoc quan anh ((vi cua) or (lai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly ((mang xa) OR (nang ma)) hoi. thieu bien bac hoc quan anh ((vi cua) OR (lai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ly ((mang xa) or (nang ma)) hoi. thieu bien bac hoc quan anh ((vi cua) or (lai cua)) tre*.