Perhaps you should try some spelling variations:
tuyen tai » truyen tai, tuyen tap, nguyen tai
tien dung » tin dung, tieu dung, tien hung
dung cong » dung trong
xuyen tai » xuyen tac, nguyen tai, truyen tai
cac che » cac he, cac chien, cac chat
va le » va de, vu le
va my » va may, va ky, va mo
vat y » vat ly, vat _

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tuyen tai) OR (xuyen tai)) cac che đe co ban ((((va le) or (va my))) or (vat y)) tien dung cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tuyen tai) OR (xuyen tai)) cac che đe co ban ((((va le) OR (va my))) OR (vat y)) tien dung cong*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tuyen tai) OR (xuyen tai)) cac che đe co ban ((((va le) or (va my))) or (vat y)) tien dung cong*".