Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien cac » vien bach, vien dai, vien da
thuc van » thuc vat, thuc dan, thuc va
hanh de » hanh ve, hanh kem
luc van » luoc van, luu van, duc van
thu sai » thu hai, thu tai, thu san
nang xa » nang x, lang xa, nang ma
lang ha » long ha
cuu tre » cua tre, cau tren, cau treo
sai ky » sac ky
de cuu » de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sai ky ((nang xa) or (lang ha)) hoi. hieu vien cac ((thuc van) or (luc van)) hanh de cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sai ky ((nang xa) OR (lang ha)) hoi. hieu vien cac ((thuc van) OR (luc van)) hanh de cuu tre.
• Adding a wildcard symbol may retrieve word variants: thu sai ky ((nang xa) or (lang ha)) hoi. hieu vien cac ((thuc van) or (luc van)) hanh de cuu tre*.