Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
nang dau » hang dau, xang dau, nang du
hai cua » thai cua, dai cua, hoi cua
dau hoi » cau hoi, dai hoi, dan hoi
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
luc va » duc va, tuc va, loc va
xuc va » duc va, tuc va, xac va
sac ky » sai ky
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: tu ((sac ky) or (cac ky)) nang dau hoi. hieu ve chat ((xuc va) or (luc va)) hanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (cac ky)) nang dau hoi. hieu ve chat ((xuc va) OR (luc va)) hanh hai cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (cac ky)) nang dau hoi. hieu ve chat ((xuc va) or (luc va)) hanh hai cua te*.