Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
hieu vien » hieu hien, hieu viec, thieu nien
vien bac » vien bach, vien cac, mien bac
bac thua » cac thuat, bac ha, bac thay
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
thua va » thuat va, chua va, thuat vat
chi tre » choi tre, chi tro, chi tiet
cho tre » cho thue, khoe tre

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 ky dang xa hoi. hieu vien bac thua va thanh toan ((chi tre) or (cho tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang xa hoi. hieu vien bac thua va thanh toan ((chi tre) OR (cho tre)).
• Adding a wildcard symbol may retrieve word variants: te sach ky dang xa hoi. hieu vien bac thua va thanh toan ((chi tre) or (cho tre))*.