Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
nhan luc » nang luc
tinh bai » tinh bac, hinh bai, tinh bao
tinh hai » tinh thai, tinh chat, trinh han
lang ha » long ha
hieu ve » hieu va, hieu van
ve nhan » ve nha, de nhan, va nhan
y lang » o lang, _ lang, tay lang
ha hoi » hoa hoi, ha noi, xa hoi
luc va » duc va, tuc va, loc va
ca tre » ca tren, cua tre, ca tru

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach y lang ha hoi. hieu ve nhan luc va ((tinh bai) or (tinh hai)) ca tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach y lang ha hoi. hieu ve nhan luc va ((tinh bai) OR (tinh hai)) ca tre.
• Adding a wildcard symbol may retrieve word variants: hoc sach y lang ha hoi. hieu ve nhan luc va ((tinh bai) or (tinh hai)) ca tre*.