Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
van cua » vang cua, ban cua, dan cua
va dinh » van dinh, va kinh, va tinh
dam lan » dam van, dam phan, pham lan
dai lao » dai lan, dai thao, dai luan
sach ty » sach y, sach thu, xach tay
lang xa » lang ha, dang xay, lang van
sach tu » sach thu, cach tu, sach uu
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) OR (sach tu)) lang xa hoi. hieu vien ((dai lao) or (dam lan)) va dinh van cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) lang xa hoi. hieu vien ((dai lao) OR (dam lan)) va dinh van cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach tu)) lang xa hoi. hieu vien ((dai lao) or (dam lan)) va dinh van cua te".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) OR (sach tu)) lang xa hoi. hieu vien ((dai lao) or (dam lan)) va dinh van cua te*.